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Solved: Nonpaged Pool leak (FWPKCLNT.SYS) window 7 x64

Q: Solved: Nonpaged Pool leak (FWPKCLNT.SYS) window 7 x64

Hi there,

I'm experiencing some serious memory leaks. At start up the initial RAM usage is around 18%, after leaving it on for about 12hrs with only background programs, the ram usage just rose to over 80%%. Then it started to lag and freeze, the only way to get back to normal is restart. RAMMap shows that Nonpaged pool is using up all my RAM.

After following this guide here Pushing the Limits of Windows: Paged and Nonpaged Pool - Mark's Blog - Site Home - TechNet Blogs, I used poolmon.exe and strings to find out the culprit is FWPKCLNT.SYS

(these pics were taken after 3hrs ontime)

Any idea how to fix this problem? Any help would be most appreciated!!!
Oh and I'm using Window 7 Home Premium x64 SP1

Preferred Solution: Solved: Nonpaged Pool leak (FWPKCLNT.SYS) window 7 x64

I recommend downloading and running Reimage. It's a computer repair tool that has been proven to identify and fix many Windows problems with a high level of success.

I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link http://downloadreimage.com/download.php. (This link will automatically start a download of Reimage that you can save to your computer.)

A: Solved: Nonpaged Pool leak (FWPKCLNT.SYS) window 7 x64

try this hotfix from microsoft


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I have a serious memory leak in nonpaged pool, which happen to be Irp packets. Here is the whole story.

The system is Win7 Ultimate x64 which I primarily use to host some VirtualBox VMs. Around beginning of May I noticed that the box started to lock up and it was rock solid for almost a year before then. I discovered that the reason for lock ups is a memory leak that east up its 16 GB of memory in a few days. I started digging deeper and figured out that the nonpaged memory grows from the typical 500 MB or so to a few GBs in a couple of days. The poolmon tool pointed to Irp tag as the clear offender.

I thought it could be some update or new driver that got installed, so I restored the system from an earlier image. I went back to images as far back as November, October and September last year, but nothing helped. The system was working fine till about end of April, so I was very surprised that reverting back to the time the system was working OK did not fix the problem.

Anyway, further troubleshooting with driver verifier (log file analysis) did not point to any driver with suspicious amount of allocated memory. So the next step was to force a memory dump with driver verifier running and use !verifier kernel debugger extension to see the memory allocated.

First of all, driver verifier puts a lot of load on the system, so it stops responding after few hours with CPUs pegged at 100%. Also, the system is much slower when driver verifier is running and the memory leak happens ... Read more

A:Serious memory leak in nonpaged pool (Irp tag)

Memory leaks occur for only one reason, and that is flawed & poorly programmed software. You are running some 3rd party (non-Microsoft) software that is not releasing memory after it is done with it. It's the software's fault.

It might be patched in an update, but if not there is nothing you can do other than re-coding & fixing the software.

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Apparently you need to tell Windows that you want to use the machine as a file server and that it should allocate resources accordingly.  Set the following registry key to ‘1′:

HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache
and set the following registry key to ‘3′:
After making these changes and restarting, I haven’t seen this issue arise again


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Hi I have a 8gb RAM laptop (and it isn't Samsung, I've seen this problem with that brand mainly) and recently the RAM usage has been far high than it normally ever is (over twice). I used the poolmon executive to find out what it is and the tag ECMC is using
2.15gb of nonpage pool space. I tried to do a findstr /s search to see what this driver was but when I did it with a normal command prompt it found nothing. Even weirder, when I tried searching it under an admin command prompt it return this string of gibberish,
twice (this isn't spam I swear):
H??6?  ?  ?HL$X??N  H\$`Hl$h?H? A^A]A\_^???????H\Ht$?WH? 3 HH99=??? ?t ?   3?A?ECMC 
\:? H?H?u???  ?H?H\$0Ht$8?H? [email protected]   ?☼????? 3?H?DBp?‼? L0?  H{?I?? ?  D? ?  H+?HK
 HH   [email protected]   L??A?HSPH???H??LL?hH\?`?D?   HI?  ? H 
Unless there's some sort of mismatch in my command prompt, this makes completely no sense. Any help with this problem would be greatly appreciated.

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I'm running XP SP2, and experiencing a non-paged pool leak of about 150 MBs a day. The pool will fill up after about 42 hours leading to a BSOD (0x000000f4). Poolmon is indicating the tag IRP is allocating ~20 bytes constantly and never freeing it. It's probably a driver, but I can't get any closer than that to finding out which one. I also monitored the leak in safe mode with no networking and it still leaks there. Could anyone perhaps help narrow it down more?

A:irp non-paged pool leak

I'm having this EXACT same problem. Started happening about the same time too.

Could it have something to do with a Windows Update? I'd really appreciate any help with this.

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Hi all,

I am having a non paged pool memory leak.

As far as i'm aware all drivers are up to date.

imgur com/Vo3QeUe https://imgur com/a/IdzFZE5

Would really appreciate any support to getting this resolved, a reboot temporarily fixes it, but after a few hours it creeps back up sometimes very suddenly also

Here is a non paged pool photo - showing some of it if it's any help to anyone? https://imgur com/a/xHLNtPs

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Like the tittle states is it possible for a browser or browser extension to cause memory leak in the non page-pool.

A couple of of day ago I switch over to Opera and had memory leak in the non page-pool that paralyzed the machine till I rebooted.

Asking cause a few days prior I was messing around with a few of my drivers and I have a new motherboard coming and was thinking of just popping the hard drive on without doing a fresh install of windows, since I have an upgrade version of Windows 8.

A:Browser cause non page-pool leak

What are you using to show that there is a non-page pool leak? Is this showing in events under administrator tools? Really need more information.

Since it is Opera, I would check their forum out, to see if others are also having this same issue. Opera Forums

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Heyo all.
It's been three days that I've trying to solve this problem, and right now I have no idea what to do next.
I noticed that my memory usage would get very high as time went on. Windows would use 3GB by itself, with no processes accounting for this. This also caused a bluescreen at one point with a "Kernal inpage error". I've checked in process explorer and the All Users section of task manager, but the RAM usage amounts don't add to the total usage. All of this memory is in my Nonpaged pool, and after further searching I've found that it increases whenever a program is downloading something from the internet. I've updated my Ethernet port's drivers but that has had no effect whatsoever.
I've tried tdsskiller, combofix, and ran a scan with Avast and Malwarebytes. All of which have found no problems.
Any help would be greatly appreciated, it's annoying to have to reboot my PC every 2 hours if I have a download running...

A:Downloads increase nonpaged memory pool usage.

Open the Task Manager and look in Processes and watch to see if a specific process is increasing in its use of memory.

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Hey guys,
I've learned quite a bit from these forums now by lurking and finally got my debugging tools working right with the symbols and all.
Anyways, I wanted some second opinions on these dumps.
Here's info on the system:

-x64 Embedded (App compatibility template) ?
- 3 weeks old, unused hardware, fresh install.
Im guessing it's memory and not driver related because I get these errors:

Invalid system memory was referenced. This cannot be protected by try-except,
it must be protected by a Probe. Typically the address is just plain bad or it
is pointing at freed memory.
Could not read faulting driver name

The pool is already corrupt at the time of the current request.
This may or may not be due to the caller.
The internal pool links must be walked to figure out a possible cause of
the problem, and then special pool applied to the suspect tags or the driver
verifier to a suspect driver.
Seems like both of those are related to memory.
I've also got some memory corruption errors too.

Thanks in advance for any input on these. Curious if i'm on the right track.

A:Bsod, bad pool header /page fault in nonpaged area


Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.
Loading Dump File [C:\Users\Mike\Documents\Kingston\BSODDmpFiles\jivex5k\Windows_NT6_BSOD_jcgriff2\020212-15865-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*C:\SymCache*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows 7 Kernel Version 7601 (Service Pack 1) MP (4 procs) Free x64
Product: WinNt, suite: TerminalServer EmbeddedNT SingleUserTS
Built by: 7601.17640.amd64fre.win7sp1_gdr.110622-1506
Machine Name:
Kernel base = 0xfffff800`02858000 PsLoadedModuleList = 0xfffff800`02a9d670
Debug session time: Wed Feb 1 15:08:02.495 2012 (GMT-7)
System Uptime: 0 days 0:23:46.743
Loading Kernel Symbols
Loading User Symbols
Loading unloaded module list
* *
* Bugcheck Analysis *
* *

Use !analyze -v to get detailed debugging information.

BugCheck 19, {22, 2100000000, 0, 0}

Prob... Read more

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Hey guys,

I have no programs running, just chrome with a couple of websites. On my previous pc with windows 7 i've never had the memory use more than 5 GB just for chrome. Also, the paged pool seems to fill up the longer I use my pc. I've read numerous threads with people saying that it is normal for a pc to use all the RAM because otherwise it's useless RAM. But I don't really believe that something like this is normal. In most threads people talked about a memory leak in the non-paged pool.

I find it also very weird that when I look at my processes they just don't add up to the 5 GB in use. Using rammap or process explorer doesn't show annything at all.
Here are my specs:
Lenovo B5400
Windows 8.1 64-bit (6.3, Build 9600)
Intel Core i5-4200M CPU @ 2.50 GHz (4CPU's)
8192MB RAM

I'm having real problems with League of Legends, I just get too much lag when I play. I have a constant 40 ping so that's not the problem, my fps is 60-70 so that's not really bad. But I just get these random stutters every few seconds. Also when I browse my pc is just acting too slow for it's specs.
I hope someone can help with this problem as I am a noob when it comes to computers. I paid about 700 euros for this laptop and I find it sad that I this stupid problem. I've already disabled superfetch and I really don't want a link to another thread as I've read every single one of them and I'm getting nuts


A:Windows 8.1 - Memory leak problem in paged pool

Hello SebaaVH,

You appear to be one of those affected by this Google Chrome bug that only affects "some." Now, since I don't know if they ever fixed it (I don't use Chrome), I would suggest trying a different browser (i.e., Firefox or Opera) to see if that fixes your issue. Now, some have stated they fixed their issue by clearing their browser cache but that would be just a band-aid IMHO:

Massive memory leak, though memory usage does not show for GC in task manager:

Regarding your League of Legends issue, I don't play it myself but your issue (or something similar) has come up several times quite recently and, if you do a Google search for that issue, you will find tons of people having issues when playing it online. You might be better off seeking assistance at a gaming forum for that specific issue IMHO.

Good luck.


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BSOD happened randomly, i don't know what makes it happened
Sometimes, while I am surfing the internet, BSOD...
Sometimes, while I am playing games like ACR4, BSOD...
I don't know whether it is the problem of my hardware or the crash from my Windows
Thanks in advance

A:BSOD randomly(Page fault in nonpaged area/ Bad Pool Header)

1. Please download this .BAT file to your desktop.

Attachment 300411

2. Right-click on it and Run as Administrator
3. It will create a .zip file on your desktop - upload that in your next reply.

The .BAT file collects the missing information needed to analyse the BSOD properly.

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Here is all the dump files
I have recent updated my netword card, my bluetooth card, and I do not what problem it is.
I tried to
(sfc.exe /scannow in cmd) did not work
(system repair) did not work
(debug mode ) did not work
I am right now on safe mode with network access
PC info: Lenovo Y70-70 Touch

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Good day
When I turn my desktop pc on, with MS XP OS, first black screen is ok, the second = that of the title hangs and with no mouse pointer to work with.
Tried all sorts, inserting a stiffy occasionally did the trick in telling me to remove it, then where angels fear to tread, into the bios/cmos I went, disabling/enabling thermal throttling option works each time I click on either, but not always.
then the date and clock, the latter ok but no luck with month in text fashion.
Meanwhile, when occasionally up and running I had no problems including
accessing the net and googling ok.
So, please help, what causes the verifying dmi and why, and how can I fix it. If help me you can, would please email the solution/s also, inaddition to the forum, at

Thank you
Scouse dave I dont think my clapping on 70 next birthday helps either.

A:2nd black window,verifying dmi pool data what causes it and how do I fix it

Unless you have added a new drive or have a virus, the CMOS battery is suspect all right.

You have to provide info about hardware and such per http://www.techsupportforum.com/foru...ng-271086.html .

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I have no idea what may be causing a Handle leak or memory leak or what causes them.Scan result of Farbar Recovery Scan Tool (FRST) (x64) Version:24-01-2016Ran by eric (administrator) on ERIC (24-01-2016 19:53:18)Running from C:\Users\eric\DownloadsLoaded Profiles: eric (Available Profiles: eric)Platform: Windows 10 Home Version 1511 (X64) Language: English (United States)Internet Explorer Version 11 (Default browser: Edge)Boot Mode: NormalTutorial for Farbar Recovery Scan Tool: http://www.geekstogo.com/forum/topic/335081-frst-tutorial-how-to-use-farbar-recovery-scan-tool/==================== Processes (Whitelisted) =================(If an entry is included in the fixlist, the process will be closed. The file will not be moved.)(Webroot) C:\Program Files\Webroot\WRSA.exe(Intel Corporation) C:\Windows\SysWOW64\IntelCpHeciSvc.exe(Intel Corporation) C:\Windows\System32\igfxCUIService.exe(Apple Inc.) C:\Program Files\Bonjour\mDNSResponder.exe(Apple Inc.) C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe(Intel® Corporation) C:\Program Files\Intel\TXE Components\TCS\HeciServer.exe(DoD PKE Engineering) C:\Program Files\DoD-PKE\InstallRoot\InstallRootService.exe(ABBYY) C:\Program Files (x86)\Common Files\ABBYY\FineReaderSprint\9.00\Licensing\NetworkLicenseServer.exe(SEIKO EPSON CORPORATION) C:\Program Files\EPSON\EpsonCustomerParticipation\EPCP.exe(Microsoft Corporation) C:\Program Files (x86)\Skype\Toolbars\AutoUpdate\SkypeC2CAutoUpdateSvc.ex... Read more

A:Handle Leak explorer.exe and memory leak firefox.exe

Greetings Egyoung1 and to BleepingComputer's Virus/Trojan/Spyware/Malware Removal forum.My name is Oh My! and I am here to help you! Now that we are "friends" please call me Gary.If you would allow me to call you by your first name I would prefer to do that.===================================================Ground Rules:First, I would like to inform you that most of us here at Bleeping Computer offer our expert assistance out of the goodness of our hearts. Please try to match our commitment to you with your patience toward us. If this was easy we would never have met. Please do not run any tools or take any steps other than those I will provide for you while we work on your computer together. I need to be certain about the state of your computer in order to provide appropriate and effective steps for you to take. Most often "well intentioned" (and usually panic driven!) independent efforts can make things much worse for both of us. If at any point you would prefer to take your own steps please let me know, I will not be offended. I would be happy to focus on the many others who are waiting in line for assistance.Please perform all steps in the order they are listed in each set of instructions. Some steps may be a bit complicated. If things are not clear, be sure to stop and let me know. We need to work on this together with confidence.Please copy and paste all logs into your post unless directed otherwise. Please do not re-run any programs I suggest. If you encounter problem... Read more

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Just got on the computer now, and suddenly everything seems to be slow, I checked the memory and found out that some program is using 94% of the memory, when I was looking for the program I found out that no program is using that amount of memory, 200 at most.

I downloaded RAMmap to map out the memory, and found out that about 94% of the memory is Nonpaged Pool (unallocated?)
. Please see the image below:

As you can see the memory leak clearly.
This is a new PC with windows installed a few days ago.
Win8.1 64x (all up to date) intel i7 haswell, z87g45 Gaming, 8Gram, gtx650ti boost, 128G ssd.

A:RAM Leak Win8.1_64x (Memory Leak) + Picture.

Here is a second picture, after a computer restart, without firefox it gets to 15% although there is no application who is running on 15% (of 8G, is about 1,000MB of process, which in the picture you can see that it cant be). - maybe it's ok maybe not, in both cases there is a leak as you can see in the first post.

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I get these constantly. Its becoming an annoyance

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I have a custom build this was running perfectly fine for the longest and then one day I try to start it up and boom this, no memory problems and no advanced options with tools to fix it with, I'm computer savvy as of 5 years ago but I can do the basics, ran out of ideas besides recovery disk ect, really wanting to save the data and fix this at home with minimal cost to me as I'm broke. Btw no disk drive currently installed

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Just wondering if anyone can help me. I've done a fresh install of Windows 7 Pro after upgrading to Windows 8 and disliking it. I've gotten several BSOD lately and I've since then downloaded BlueScreenView and viewed my dump files. I keep seeing "avnetflt.sys", "fwpkclnt.sys" & "ntoskrnl.exe" and under "Bug Check String" is says BAD_POOL_CALLER. Can anyone assist me on this and let me know what these issues are? Thanks.

A:BSOD ntoskrnl.exe, fwpkclnt.sys, avnetflt.sys

Please follow - Blue Screen of Death (BSOD) Posting Instructions

BlueScreenView is a pretty useless program in my opinion, it gives a Stop Code, a Probably Caused Line and maybe a call stack?

If you want to have a look at the dump files yourself, even for curosity, then WinDbg is the proper tool to use - WinDBG: The very basics

BugCheck C2, {7, 109b, 4030010, fffffa8005a8faa0}

Probably caused by : avnetflt.sys ( avnetflt+76fa )
The bugcheck indicates that a driver has double freed a pool allocation.

3: kd> !pool fffffa8005a8faa0
Pool page fffffa8005a8faa0 region is Nonpaged pool
fffffa8005a8f000 size: 150 previous size: 0 (Allocated) File (Protected)
fffffa8005a8f150 size: 30 previous size: 150 (Free) ....
fffffa8005a8f180 size: 100 previous size: 30 (Allocated) Ntfx
fffffa8005a8f280 size: 40 previous size: 100 (Allocated) ReTa
fffffa8005a8f2c0 size: c0 previous size: 40 (Allocated) FMsl
fffffa8005a8f380 size: 100 previous size: c0 (Allocated) MmCa
fffffa8005a8f480 size: 100 previous size: 100 (Allocated) Ntfx
fffffa8005a8f580 size: 100 previous size: 100 (Allocated) MmCa
fffffa8005a8f680 size: c0 previous size: 100 (Allocated) EtwR (Protected)
fffffa8005a8f740 size: d0 previous size: c0 (Allocated) MmCa
fffffa8005a8f810 size: 80 previous size: d0 (Free) WfpM
fffffa8005a8f890 size: 100 previous size: 80 (Allocated) MmCa
fffffa8005a8f990 size: 100 previous size:... Read more

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I got a BSOD on my SSD and booting up it told me that "fwpkclnt.sys is missing or corrupt". I ran Startup Repair, tried System Restore, did a few things in command prompt, and nothing has worked. So I switched to my HDD for a day (it was working fine) but then overnight it BSODed or something and refused to boot up because "winload.exe is missing or corrupt".

The error codes for the SSD and HDD errors are "0xc0000221" and "0xc000000e" respectively.

Windows 7 Professional 64-bit
Intel(R) Core(TM) i5 CPU 750 @2.67GHz
NVIDIA GeForce 8800 GT
P7H55-M Pro Motherboard

A:BSOD then no boot cause fwpkclnt.sys is missing or corrupt

Hey and welcome to SevenForums!

Run MemTest86+ for 8 passes.
SeaTools. Run also the Emergency Recovery Disk and allow the system to repair or replace the missing or damaged driver file on the system partition.

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I get BSOD when I'm in FireFox after upgrading the windows 10 to build 1607, I got couple of them after the update but didn't experience them when using chrome. I noticed that I lose internet connection right before the BSOD happens. I enabled driver verifier and got BSOD right after the logo screen with something like driver violation detected. 
Below is the latest output from BSOD:
101016-11750-01.dmp 10/10/2016 10:05:53 PM BAD_POOL_CALLER 0x000000c2 00000000`00000007 00000000`00000000 00000000`00000001 ffff800f`0a0f1878 fwpkclnt.sys fwpkclnt.sys+10e1 x64 ntoskrnl.exe+14a2b0 C:\WINDOWS\Minidump\101016-11750-01.dmp 8 15 14393 543,284
Laptop: HP EliteBook 8570w
Windows 10 Pro 64bit build 1607
Upgraded from Win7 to Win10 to the latest update
CPU: Core i7 3610QM
Graphic: nVidia Quadro 1000m
PS: I disabled the DVD ROM myself as I don't use it ever and don't like the sound it makes.

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Dear Friends,

We are facing a problem of RAM utilization increase(memory leak) on our system with 14 PCs.

4 PCs are working with Windows server 2008 R2 SP1 and 10 with Windows 7.

We released that the RAM rise is due the antivirus recent version.

But when we searched on net we found similar problem being faced by other people please see the link:

Solution for the same is given as a patch for Windows https://support.microsoft.com/en-us/kb/2885980 .

We have installed the patch on one of the Windows servers machine for trial purpose and found that the patch really worked in our case. RAM increase has stopped. Then we installed the patch on Windows server 2008 machines.

But the problem is the patch is not installing on Windows 7. It throws a messages "The patch is not applicable for the machine".

Then we raised this question on Microsoft community :

There we come to know that the version of fwpkclnt.sys is updated in our case at site that is the reason it is not allowing us to install the necessary hotfix. Present version of file at site is  fwpkclnt.sys
We would like to know if there is any metho... Read more

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I am running Windows Vista Home Premium on a laptop about 2 months old. I have completely removed all traces of the pre-installed Norton 360 program using Symantec's removal program.

I am running AVG Anti-Virus (Free Version Only) I have disabled Windows Firewall and Windows Defender prior to installation, and downloaded the latest certified Vista-Compatible version.

The installer has been attempted "Run as Administrator" and also normally.

It gets to either 99% installed and then the BSOD happens or else it gets to Setting up ZoneAlarm and then the BSOD happens.

I see


and fwpkclnt.sys a bit further down on the screen.

Windows does a full memory dump. I have tried everything I can find on ZoneAlarm's support forums and still no luck! (http://forum.zonelabs.org/zonelabs/b...ssage.id=74279)

What is ZoneAlarm's problem with Windows Vista and any idea what to do to fix it?
I don't want to use Windows built-in crappy firewall!

and yes, I do know that fwpkclnt.sys has something to do with the Windows Firewall....I just want a better firewall than that POS!

Operating System: Windows Vista Home Premium
ZoneAlarm Software Version: 7.1.x (Vista-compatible)
Product Name: ZoneAlarm (Free)

I have also posted this in the Windows Vista forum, because I couldn't figure out which to use. Sorry.

A:ZoneAlarm causing Blue Screen of Death (BSOD) referencing fwpkclnt.sys

UPDATE: I ran Microsoft Windows Debugging Tools (available at: http://www.microsoft.com/whdc/devtools/debugging/default.mspx) and this is what I got.

Hope this helps!

* *
* Bugcheck Analysis *
* *

An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high. This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arg1: 00000078, memory referenced
Arg2: 00000002, IRQL
Arg3: 00000000, value 0 = read operation, 1 = write operation
Arg4: 8e6831f2, address which referenced memory

Debugging Details:

READ_ADDRESS: 00000078


8e6831f2 8b4878 mov ecx,dword ptr [eax+78h]




TRAP_FRAME: 9b62f52c -- (.trap 0xffffffff9b62f52c)
ErrCode = 00000000
eax=00000000 ebx=00002006 ecx=9a860da0 edx=00000000 esi=9a957c98 edi=84062a98
eip=8e6831f2 esp=9b62f5a0 ebp=9b62f5a4 iopl=0 nv up ei pl nz na po nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010202
8e6831f2 8b4878 mov ecx,dword ptr [eax+78h] ds:0023:00000078=????????
Resetting default scop... Read more

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I am running Windows Vista Home Premium on a laptop about 2 months old. I have completely removed all traces of the pre-installed Norton 360 program using Symantec's removal program.

I am running AVG Anti-Virus (Free Version Only) I have disabled Windows Firewall and Windows Defender prior to installation, and downloaded the latest certified Vista-Compatible version.

The installer has been attempted "Run as Administrator" and also normally.

It gets to either 99% installed and then the BSOD happens or else it gets to Setting up ZoneAlarm and then the BSOD happens.

I see


and fwpkclnt.sys a bit further down on the screen.

Windows does a full memory dump. I have tried everything I can find on ZoneAlarm's support forums and still no luck! (http://forum.zonelabs.org/zonelabs/board/message?board.id=inst&message.id=74279)

What is ZoneAlarm's problem with Windows Vista and any idea what to do to fix it?
I don't want to use Windows built-in crappy firewall!

and yes, I do know that fwpkclnt.sys has something to do with the Windows Firewall....I just want a better firewall than that POS!

Operating System: Windows Vista Home Premium
ZoneAlarm Software Version: 7.1.x (Vista-compatible)
Product Name: ZoneAlarm (Free)

A:ZoneAlarm causing Blue Screen of Death (BSOD) referencing fwpkclnt.sys

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Good day all, I hope someone can help me with a consistent BSOD problem I've had today.

Every time my Steam client starts up and attempts to download its latest update, I get a BSOD with a Bad Pool Caller (one time out of about a dozen crashes it was Bad Pool Header instead). I have tried the Steam support, but their guides are focused on the program crashing, not the whole computer and I have had no luck fixing it there.

I downloaded DM Log Collector and attached my report, but I want to point out now that Windows has not produced dmp files for any of these crashes, even though the correct options are checked in the "Startup and Recovery" settings.

Thank you kindly for any help you can offer.

PS - I'm headed to bed, I'll be back tomorrow around 7am EDT.

A:BSOD on Steam Update, Bad Pool Caller or Bad Pool Header, no dmp files

Make sure your dump logging is enabled.

Click Start, point to Settings, and then click Control Panel.
Double-click System.
Click the Advanced tab, and then click Settings under Startup and Recovery.
Check Write an even to the system log, and Automatically restart.
In the Write debugging information list, click Small memory dump (256k).
Location of Dumps:

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Hello i would like to know why im crashing so often, literally i crash 4 or 5 times daily at random times, and i keep getting those BSOD's, but all this started when i updated to Win10 (I knew that updating at day 0 was a bad idea z.z )
I will leave the minidumps attached so you can analyze and hopefully tell me what is failing, but i already suspect a driver failing because no win10 support.

A:Getting lots of "Bad Pool Caller" and "Bad Pool Header" since i updated to Win10

Please provide this information so we can provide a complete analysis (from the Pinned Topic at the top of the forum):  http://www.bleepingcomputer.com/forums/t/576314/blue-screen-of-death-bsod-posting-instructions-windows-10-81-8-7-vista/Here's what I got from the minidumps, there may be more info in the other reports that I requested in the above paragraph. From the minidumps, try uninstalling MalwareBytes.  It's mwac.sys driver appears to be the culprit in the memory dumps. Also, Daemon Tools (and Alcohol % software) are known to cause BSOD's on some Windows systems (mostly due to the sptd.sys driver, although I have seen both dtsoftbus01.sys and dtscsibus.sys blamed on several occasions).Please un-install the program, then use the following free tool to ensure that the troublesome sptd.sys driver is removed from your system (pick the 32 or 64 bit system depending on your system's configuration):  New link (15 Aug 2012):  http://www.duplexsecure.com/downloads (pick the appropriate version for your system and select "Un-install" when you run it).Alternate link:  http://www.disc-tools.com/download/sptdManual procedure here:  http://daemonpro-help.com/en/problems_and_solutions/registry_and_sptd_problems.htmlAnalysis:The following is for informational purposes only.[font=lucida console]**************************Mon Aug  3 01:43:40.404 2015 (UTC - 4:00)**************************
Loading Dump File [C:\Users\John\SysnativeB... Read more

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i have one PC that keeps restarting every time i try to download something off the internet. so i took it to a shop that tested everything and they told me all i needed to do was reformat it since the tests showed everything was fine.

before the reformat, the PC was working perfectly except for the freaking restart problem.

during the reformat, while installing windows, i get a BSOD with this.

page fault in nonpaged area

0x00000050 (0xF7B0300C 0x00000000 0x805D71EB 0x00000000)

thinking it was the hard disk, i ran memtest+ on it which told me the hd passed, so it was probably caused by a different hardware issue, i googled around and it told me faulty ram was the most probable cause, so i moved the entire hd to a working CPU and reformatted it there, same error.

my other CPU works perfectly with its original hard disk so the problem isn't with other hardware, and memtest+ said the problematic hard disk is ok.

anyone got any idea on what's wrong? i really appreciate any help right about now...

i'm using windows xp sp3 to reformat btw...

A:Solved: help! page fault in nonpaged area

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Well, the blue screen crashes were sporadic a few weeks ago, but this comp crashed 3 times today :/

The most common errors are "Driver irql not less or equal" and "Page fault in nonpaged area"

The things I've tried:
-a system restore to last month
-reinstalled windows
-checked device manager for exclamation marks
-a friend said it could be bad memory, so i swapped a spare 512mb stick with another of the same brand. ( 512mb x 2 in dual channel), it still crashed afterward. However i could have swapped out the wrong stick so i'll try the other.

the two most recent crashes involved:
alcxwdm.sys - Driver irql not less or equal
nv4_disp.dll - Page fault in nonpaged area

The windows error reporting isn't the most helpful, and i haven't installed any software or updated any drivers recently.

Any help would be appreciated

A:Solved: Page fault in nonpaged area?

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I'm not sure how long this has been going on, but after my computer is on a few hours and I've been messing around (WoW, witcher 3, browsing the internet, etc) my computer eventually gets stuck on a high memory usage % (over 90%+) even though I have closed like every program running. If I close a high memory program the memory usage will still stay on 80%+

And when I restart my computer, my memory usage is normal around 20%-30% but after a few hours it jumps back up to 90%+ and becomes very sluggish and laggy.

I have run virus scans, malware scans, spyware scans, you name it, and no infections found.

I have included an imgur album that I created to show you my windows processes, memory usage, RAMMap results, etc.

As you can see on RamMap, when I went to processes, there are literally THOUSANDS of "Powercfg.exe" and "Conhost.exe" (Look how small the scroll bar is!) So this is obviously a problem, I don't know why there are thousands of zombie processes. I've never dealt with a memory leak before (if it even is one) and I would very much like help! Thank you fellows! These thousands of powercfg and conhosts are each 4 kb each... multiply that by 1000+ and you've got a problem.

PC - Album on Imgur

A:[SOLVED] Possible memory leak? Help please!

Hi, lets try the easy obvious fix, hiberfil.sys is the file windows uses to hold hibernate data it can grow very large and it does sometimes become corrupt. We can clear the old file and windows will create a new non corrupt one.

Go to start, search and type:- cmd right click on the returned cmd.exe and select "run as administrator" at the cmd prompt type:-

powercfg -h off (press enter)

Restart computer and open cmd prompt as admin (as shown) and this time type:-

powercfg -h on (press enter) this will recreate the hiberfil.sys file and should fix the multiple instances in processes. Let us know how you get on.

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Alright, I'm unsure if this is the right forum, but here goes.

For the past few weeks, my computer has been slowly getting bogged down. I'm unsure which file is causing it, but I keep having to reset my computer every few hours so that I may actually use my computer for anything.

This probably only began probably two or three weeks ago, and, at first, I was 100% certain it was a virus or malware. I scanned, cleaned up some files, and...nothing changed.

Seriously, if I have my computer on for more than two or three hours, it begins to force certain programs to shut down, including Firefox, Internet Explorer--used out of desperation--and even Windows Explorer. I'm not joking.

I've no clue what's causing this, and if anyone has some insight into it, any and all help is greatly appreciated.

A:Solved: Memory Leak

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I used to comment on a blog called Idolator, which Gawker sold to Buzzmedia years ago. Apparently my account for Gawker remained even though the rest of our information went to Buzzmedia. I even stopped commenting on Idolator once Buzzmedia fired the person who wrote it to replace her with two rambling talking heads.

However, I got an email from Gawker telling me that my account was still on Gawker for it to be in that huge leak of Gawker passwords. I have changed all my passwords dating from when Idolator was apart of Gawker.

To make sure, I even downloaded Bittorrent to seed that file so I can look to see if was my main password from several years ago, or if it dates from when Idolator crashed and all of our passwords became random letter/number combinations, but Bittorrent installed its toolbar and something called Conduit Engine on the computer I installed it on (I deleted Bittorrent, got rid of the toolbar manually, but there's something from Conduit Engine still sitting in C:\WINDOWS\Prefetch. Can I delete that?)

My big question is: has anyone mobilized any sort of an attack on Gawker users yet? I only found out today, so I'd like to know if my changing of my passwords of the several websites I used that Username/Password on are fine.

The username I used is in fact, DocStrange or Doc Strange, which I use on many websites, but there's at least 4 other users who use that name for everything, including another fellow who apparently posts on Gawker'... Read more

A:Solved: Gawker Leak

Prefetch folder > you can delete anything in there, it's fine. The prefetch folder itself will regenerate itself if its not in it's location (its a windows system folder)

As to the password leak thing, it looks like it's just for them. If you do not use it... i would remove any pertinent information (ie address, email if you can) from your account on the site and then let it rot.

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During install of VHP, after the initial boot from DVD, I keep encountering a problem, this is the bsod message


*** STOP: 0xFFD13004 (0xFFD13004, 0x00000001, 0x88BA83DC, 0x00000000)

Can anyone help please,

I had just updated my bios to F13X (gigabyte ds3 v1.3), i tried reverting, this did not help.

I ran memtest, no help

I have used two different HDD, same issue

Intel Q6600 no OC
2GB Patriot DDR2 800
nVidia 7900 GS
Gigabyte ds3 v1.3

I have installed the same os with same disk before, zero problems

A:[SOLVED] page fault in nonpaged area at install

try installing with only 1 stick of ram in
check the disk is clean of finger marks ect.

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My Dell Inspiron 8600 just gave me this error message. I have never had a problem with this laptop before. I can boot into safe mode but thats it. Any quick fixes? Thanks for reading. I forgot to mention it also says, The problem seems to be caused by the following file PartMgr.sys

A:Solved: BSOD Page fault in Nonpaged area?

Do you have an installation disk for your OS? If so, you can run the Windows Repair feature, which will not delete any of your files or settings...only Windows Updates in XP. This repair feature will repair any damaged Windows files. If you can post your OS, a link to help with the installation will be easy to provide...

Here is an excerpt from a post on another site I found about your particular issue...

"This is caused by the virtual memory page file being set at zero. Also some people say having external drives and a new device installed can also cause this problem. If you increase the voltage to your ram then this sometimes can also trigger a new response. Heres a little more info from a forum I've looked at, some of which may or not be useful. Hope this helps.

Partmgr.sys controls the Page File, which, if the PF's become corrupted, will prevent Windows from working (even loading in some cases)."

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My laptop bluescreened whilst web browsing, non intensive activity was underway. Didn't have much time to read it but i think it said "Page Dump in NonPaged Area".

I has BSOD'd before twice in the last two weeks but both times were a USB related error message, possibly related to an inherent flaw in my laptop which is a loose connection to the inbuilt webcam.

This thread is about the most recent one, the Page Dump one.

OS: Vista Service Pack 1
32 bit
Original OS was Vista, pre installed when system bought
Hardware 5 years old
OS may have been reinstalled when laptop was serviced 2 years ago (not sure)

CPU: AMD Athlon X2 Dual Core QL-65 2.10GHz
Motherboard: unknown
Video card: ATI Mobility Radeon HD 4530 512mb dedicated
PSU: OEM 90W HP AC Adapter

System Manufacturer: HP
Model: DV6-1210sa

Any other info needed please let me know. Thanks very much.

A:[SOLVED] BSOD Page Dump in Nonpaged Area?



This indicates that invalid system memory has been referenced.

Usual causes are a bug in a device driver, hardware related memory issues, corrupt NTFS volume, anti-virus software.


IMAGE_NAME: hardware

MODULE_NAME: hardware


A system thread generated an exception that the error handler did not catch.


1: kd> .exr 0xffffffffa8b4b9f4
ExceptionAddress: bc16e0f6 (USBPORT!USBPORT_EndpointFromHandle+0x0000000e)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 00000000
Parameter[1]: 0000000c
Attempt to read from address 0000000c

The is a problem with the USB hardware (motherboard or attachments) or the USB device driver has a bug.

Windows Server 2008/Windows Vista Kernel Version 6001 (Service Pack 1)

Try this hotfix - Error message when you try to put a Windows Vista-based computer to sleep or into hibernation: "STOP 0x000000FE BUGCODE_USB_DRIVER"


possibly related to an inherent flaw in my laptop which is a loose connection to the inbuilt webcam.

Most likely, does the webcam work whatsoever?

What other USB devices are you using regularly that are / would be connected to the system?



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Hello, I am recieving this BSOD at seemingly random times, I havn't figured out the steps to reproduce the problem but it is occuring anywhere between 1 min or 10 hours of active PC usage (for the past week or so). It even happens when I am afk.
The crash does not seem to happen in safe mode (although I have not ran in safe mode for longer than a couple hours).

I have taken the following steps already to try and find the problem:
Reseated RAM, graphics card and wireless card.
Ran memtest86+ with no errors.
Ran "dskchk /f /r" on the windows drive with no errors.
Used "verifier" which crashed on dtsoftbus01.sys, so I uninstalled Daemon tools. Then I recieved another BSOD at a random time during normal use due to a "driver attempting to corrupt the system" with stop code 0x000000C4. I do not recieve this BSOD with verifier disabled.
Scanned with Malwarebytes which returned nothing.

EDIT: BSOD still occurs with page file size set to zero.

OS Version: Microsoft Windows 7 Ultimate, 64 bit
Processor: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 4
RAM: 8167 Mb
Graphics Card: NVIDIA GeForce GTX 560 Ti, 1280 Mb
Hard Drives: C: Total - 953766 MB, Free - 160565 MB; E: Total - 953863 MB, Free - 367958 MB;
Motherboard: ASUSTeK Computer INC., P8Z68-V GEN3
Antivirus: None

I would upload the minidump file but I cannot attach it to this post and am not sure what alternative this community prefers.

Are th... Read more

A:Solved: BSOD page fault in nonpaged area

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I had inadvertently got attacked by one of those site that offers a free scan for virus protection and I could not get it off of my machine. In my efforts I ended up with a blue screen with the claim that I have a "page fault in nonpaged area" and it instructs me to remove cache, shadowing and various other exercises that can't be done or are not relevant. There is also a series of changing causes similar, if not the same, as those reported by others that are having problems and are similarly titled in this forum area.

So long as I am using the computer, there seems to be no problem, but when I am inactive for a few minutes, the blue screen appears telling me that I have this page fault and then starts to restart but it really is not actually restarting even though the windows introductory screen appears like when we boot the system. If I hit f8 or f9 or sometimes the space bar the desktop appears with the blank icon forms and proceeds to fill in the icons with colors but also the page that I was working on last comes up immediately as if it never shut down in the first place. I am using the firefox browser and all of the tabs are retained. I can call up solitaire or whatever just like when everything is normal.

I get a different message every time like : Bad_Pool_Header or, Sysinternal_great_site or, irql_not_less_or_equal or, Panic_stack_switch ... .

Other than the blue screen, the restart cycle that may not really be restarting but still appears to, seemi... Read more

A:Solved: Page fault in nonpaged area -New Repost

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This is one problem that only recently started.

Whenever I touch any unpainted part of my computer, I will get a minor electric shock. as if there is some leak current flowing throughout the chassis. This has not happened before.

What is the probable cause of this, and what would be the solution?

Many thanks

A:Solved: PC case current leak?

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I am having a problem on a fresh Windows 7 x64 installation. lsass.exe takes up about 4-6% CPU constantly, and the RAM usage goes up until the computer crashes (usually about 1GB every 12 hours).

I've done all the virus scans possible just to be safe, and they found nothing.

I've narrowed the problem down to network sharing. As soon as I enable "File and Printer Sharing" in Networking Settings, it starts. When I disable "File and Printer Sharing", the problem stops immediately (the CPU goes to 0%, and the RAM stops climbing, but remains at whatever amount it stopped at). I share folders and a usb printer with the other computers in my house, so I need this feature.

Any ideas where I can go from here? I've tried turning all other computers off, just incase they were causing the problem with constant requests, but it did not make a difference.


A:[SOLVED] lsass.exe memory leak

Does the problem continue with the printer off? If all users have Admin privileges try reverting each one at a time to User status. This was a problem in old OSs. Unless network is in use 24 hours continuously, I prefer shutting down and cold booting rather than sleep/hibernate.

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My cpu was running a bit hot, so I decided I would take her apart and reapply new thermal paste. Upon taking the cooler off, I saw that the paste had ran quite a bit and had leaked under the processor and into the pins. The last time I did this I (foolishly) bought some cheaper Dynex silver thermal compound I found at best buy because I didn't want to wait for a new tube of AS5 to come in the mail. I use a very minimal amount of paste so I don't know why it ran so much.

Anyway, about 4 pins on the top and 2 on the left side of the socket were full of paste, and I spent about an hour with Iso and a tooth brush cleaning the cpu and the socket the best I could. The socket LOOKS clean, but I can see just a little bit of white in the holes when move the lock lever back and forth. I reinstalled the cpu and heatsink, but upon boot I get an error that there's no cpu installed and that I should enter setup. In BIOS, my cpu shows up as normal.

So is the board cooked? The cpu? Would trying to clean it more do anything? Is there a way to disassemble the socket to clean it more effectively?

As always, any advice is appreciated.

A:Solved: Thermal paste leak

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Hey guys and gals,

My problems revolves around this fuzzy little process svchost.exe. When I start my computer, after I log in, I have about 1 minute before my computer essentially freezes.

So, I open up task manager on login, and see that svchost.exe increasingly uses 15 mb of RAM every second until it gets about 600 mb and the computer is unusable. I checked the services associated to this particular svchost: DcomLaunch and PlugnPlay. When I try to stop the process, it states that the process can not be stopped because it is not running(but it quite obviously is).

This all started when I was perusing a website, then was notified by avast that 3 or four viruses/trojans had come in. I believe avast got all of them, but I am still having this problem. I managed to schedule a boot time scan for avast but nothing was found.

I have previously used restore to last good boot, but this did not work.

I would be more than happy to post a hijackthis but I do not know if I'll have time to DL it and install before the freeze.

BTW, if I stop the svchost process, a windows type window comes up and says the system is restarting. I then have a minute before restart.

I am currently posting from the Ubuntu side of my Laptop as the windows side is unusable.

Would love some help, I really would prefer to not have to re-install everything.

Dell Inspiron 1501
1GB Ram
Vista Home Premium
70 GB Partition

EDIT: Actually when trying to stop the services, States that this is n... Read more

A:Solved: svchost.exe memory leak!

I only use 'Last known good' when the system fails to boot. Try System Restore ( \All Programs\Accessories\System Tools\System Restore )

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I have an oddity with Windows Spooler on Windows 7 Ultimate 64-bit.

After a restart, the memory used by the spooler relentlessly start slowly climbing, I noticed after a couple of days, the spooler had 1.3gigs of memory! I checked and there were no files in the PRINTER folder waiting, so the spooler wasn't trying to do anything. When checking the memory usage in task manager, you can see if bouncing around a bit but slowly increasing by 4k every 20-30 seconds for no apparent reason.

Anyone else seen this? Any idea what it is?

A:Solved: Spooler Memory Leak?

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Today when I tried to start my computer (with Win XP) it gave a BSOD at the startup (just after showing welcome screen)

I got page_fault_in_nonpaged_area error with following tech info:
0x00000050 (0xF80F6660,0x00000000,0xF7BD971E,0x00000000)

I tried to restart few times but got the same error. Then I tried to start in safe mode - it started successfully. It also started in safe mode with networking.

Then I tried system restore to prev. day but it did not help.

I did following three things on the prev evening:
1. I took a backup of whole C: drive on an external hard drive.
2. Deleted lot of files from this external drive (before taking the backup)
3. Installed, played, uninstalled a game from yahoo games.

I am not sure if any of those things caused the trouble.

I also checked if there is any problems with RAM by remove both of them and putting one at a time and seeing if xp starts - but xp still did not start.

Hope someone can help me

A:Solved: BSOD: page fault in nonpaged area error

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This screen was coming up for a while now in every second or third day in the morning when I boot up. Now it's doing almost daily.

It temporarily solved the problem to higher a little bit on vcore or lover a bit on fsb, but that only works for a few boot ups.

I thought it was my processor giving up, I switched to a brand new one but it's still doing the same. Only after the switch I wasn't able to boot up, not even to bios.

When I got out my second videocard (I have two 8800 GTS 640) the computer booted again and worked fine for a day when blue screen appeared again. In the end I could boot up with two videocards with the order changed so that's ok.

I tested memory for hours and it was fine. I switched processor. I updated windows.

I start to think it's my mobo. Anyways I attached few dumps so pls help me.

ps.: My current config is: Asus striker extreme mobo, core 2 quad q6600, 2x asus en8800 gts 640 in sli, chieftech 620W power supply

A:Solved: Blue Screen Page fault in nonpaged area

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if I leave my computer unattended for an extended period, the RAM usage climbs up to around 80% and leaves me struggling to use my computer when I return. It is not one process that causes this - but nearly everything, Chrome itself can get up to 100,000 KB memory usage, along with every other process on the computer. The only way to resolve it is to restart my PC.

This doesn't occur if I stay on the PC and do not leave it unattended - but for reasons I cannot fathom, if I walk away for 15-20 minutes, it'll start to hog the memory and make it unusable again.

I've been told it's because of the Superfetch service - but upon disabling it, there was no notable increase in speed. My other Windows installations work fine - as does Ubuntu, so it doesn't appear to be a hardware issue.

Any suggestions as to what to try?

A:[SOLVED] Windows 7 memory leak issues.

Post a screenshot of Task Manager - Performance tab, when memory usage is high. When troubleshooting a memory issue this is the place to start.

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This is a problem that I seem to end up with a lot. On the desktop, it happens with the SVCHOST's Network Service process and on the laptop it happens on the Local Service process.

When I start either computer and run Task Manager, I can see the memory usage continue to climb slowly even after the systems have fully loaded and are basically idle!

I have run Ad-Ware SE Pro and my virus protection several times. Every once in a while they find files that need to be deleted, but still the same problem persists.

Any suggestions on the next steps that I need to take to try and find the problem?

One final note: I end stop the Network Service process at startup on the desktop which does not fix the problem but at least is a temporary solution. When I try to do the same with the Local Service process, it continuously reappears and disappears, basically doing the same as before (ram hogging), but in an odd cat-and-mouse way that cannot be ended again. The ending of neither process causes any critical errors like ending a SVCHOST System process would.

A:[SOLVED] Severe SVCHOST memory leak

You state that your OS is "Windows XP Home v2002, SP1". The svchost memory leak was solved in later updates :

Please update Windows XP with all the latest critical updates using Windows update.

Read this before you install SP3 :

I would advise that you download the standalone installer for SP3, disconnect physically from the internet (unplug the cable or turn the router off or you'll reconnect automatically once Windows restarts) and turn off your antivirus and firewall protection before you install SP3. Once SP3 is installed reenable your firewall and antivirus and reconnect to the internet.

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Ever since yesterday, I get instances of Explorer.exe randomly generating and sucking up CPU cycles, memory, and handles. I don't know where it's coming from. But it seems that a couple instances of ctfmon.exe always appear before it happens. I've run AVG, Spybot, and MBAM to try to track this down. I've tried starting the system with only Microsoft services. I'm no closer to a solution.

I can't troubleshoot this one on my own. Help.

Windows 7 64 bit, Gigabyte motherboard.

HJT log included.

A:Solved: Explorer.exe processes leak memory, handles, and CPU

Looks like a got it. TDSSKiller found a Cidox rootkit.

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I am experiencing the same thing for about 3 weeks now. If I close all my gadgets, sidebar.exe goes away, and svchost.exe memory usage eventually drops back down to "normal". If I load ANY gadget, memory starts to climb again in both sidebar.exe and svchost.exe. I am starting to get VERY annoyed with this, I miss my sidebars.

Anyone found a solution for this ?


A:[SOLVED] Windows 7 x64 memory leak - svchost and sidebar

I moved your post from - Massive win7 x64 memory leak in svchost and sidebar!

Download and save SysInternals Process Explorer -

RIGHT-click on procexp.exe, select "Run as Administrator"

Hover the mouse over the scvhost.exe in question to see what is running under it -

Regards. . .



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