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Laptop Screen turning on and off

Q: Laptop Screen turning on and off

I'm using a lenovo G40-80 laptop running in windows 10 OS. My laptop's screen have been turning on and off all for a while. I could still see the running applications but I cant use my keyboard because it looks like it is ghost-typing. The volume and brightness is appearing alternately on the screen like it's being pressed at the same time then the screen would turn off then turn back on after seconds and sometimes even a minute.

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Preferred Solution: Laptop Screen turning on and off

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 few days ago, I dropped my laptop from less than 12 inches over the carpet. It landed on its corner. Since then, the screen won't turn on. There is no physical damage to the screen or the casing. There have been a couple of times where I was able to get it to turn on by using a paper clip to press the reset button or holding shift and f8 while I press the power button. Neither of these solutions work the first time. When I am able to get it to turn on, the screen looks perfectly fine. There are no visible problems with the colors. The only other problem related is that the backlit keyboard won't turn off when the laptop is closed. The computer works fine otherwise.

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so my friends computer started acting weirdly a few days ago. When power is turned on, the screen stays black and cd reader makes a weird sound (check the video and make sure you have volume turned up)
I'm not sure what is causing this but if I am able to repair it at home it would be great.


PS: Computers Specs

HP Compaq 6735s
OS Windows Vista
CPU AMD Sempron Processor for Notebook PCs SI-40 (2.0 GHz, 512 KB L2 cache)
GPU Integrated UMA Graphics ATI Mobility Radeon HD 3200 with shared system memory
DISPLAY 15.4 inches diagonal WXGA BrightView (1280 x 800 resolution)

A:Laptop screen not turning up!


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After leaving my Toshiba Satellite running on my bed on a particularly hot day last summer, the screen won't boot up when I turn it on. The screen remains off while the power lights, fan, drive, all seem to power on and run.

I have tried rebooting it by removing the battery and then turning it on again but it still doesn't work. I'm really looking for someone who can guide me through some troubleshooting so I can figure out what's wrong.

*edit* I forgot to mention I have also tried plugging in other screens and it does not boot up on them either.

A:Laptop screen not turning on

Hello BambooforPanda,

It is possible that something fried in the heat, can you tell us the exact model of Toshiba Satellite you have so we can do some research, some examples here

BambooforPanda said:

*edit* I forgot to mention I have also tried plugging in other screens and it does not boot up on them either.Click to expand...

When you tried this did you press down the Fn and F5 keys at the same time to toggle between displays.

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When I turn the laptop on the power light comes on as does the wifi light but the screen doesn't. It's like the laptop doesn't know the lid is open. Similarly when I shut the lid it doesn't shut the laptop down/put it to sleep.I can also turn caps lock on and off etc.I would just like a way that I can access the info on the laptop such as photos etc.I have also tried plugging a vga cable in but have been unable to get a signal to the other screen.Any help would be greatly appreciated.Thanks.

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Hey there this is my first post here.

So I turned my laptop on as usual to an unexpected black screen and a frozen cursor at the top left. Nothing came on the screen prior. I then tried turning the machine off via the power button to no success so I had to pull the battery.

Now it no longer turns on at all! I've tried discharging it too and nothing

I'm using a Compaq presario. Any help will be seriously appreciated.


A:Black Screen Help Upon Turning On Laptop

Hello trenon and Welcome to PCHF

After you log-in (on black screen) press ONE TIME Ctrl-Alt-Del.
Then Start Task Manager>File>New Task (Run...)>Browse>Local Disk (where Windows is)>Windows>Explorer and select Open

BTW: Is there a light blinking on CapsLock?

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My laptop screen keeps on turning upside-down. when I click ctrl+alt+Up-arrow keys it will go back to normal. But immediately when i click to lunch any application it will turn upside down. It started in the morning when I turn on the system, I restarted and shutdown the system several times, but doesn't work. I am using my office secured network.Kindly help me to resolve the issue. Thank you

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Few days ago my laptop screen used to flicker and 1 day ago it is not coming on how to open it and check for the connections or how can from where can I replaced

A:laptop display screen not turning on

first thing is to test the video card; do you have a desktop monitor around you can plug into the lapper to see if you get display?

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I just turned on my win 7 HP Pavillion G7 laptop and I get a black screen. the power light and num lock is on; I hear the fan and hard drive moving but not taking me to the windows startup so i can enter my password. this is not the first time i have had this problem. i have hit f2/f3, f10, and f8 the laptop is not responding to those commands. I did a hard reset power off laptop for 30 seconds and took out the battery and plugged it back in. The screen is still black. any suggestions?

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I have a Hp Pavilion dv4 2145dx Everything was fine one night, and I shut it down and unplugged the AC adapter. The next day, I plugged it in, turned it on. I heard it booting and the lights were going on as if it were turning on regularly but there was nothing on the screen, it was just completely black, no lights or anything. I looked on the keyboard and the lights next to Caps Lock and Scroll (Num Lock) were flashing every 2-3 Seconds. I researched the dilemma to see if there were similar cases which have been resolved, so following one of them, I plugged in an external montior to see if the main components were working and as I plugged it in the screen turned on! So I knew that the screen wasn't "fried" from overheating or anything of that sort. Everything was fine again, then I guess the AC adapter got lose, so the battery went down and shut the computer off. I plugged it back in and the same problem occured, so I tried plugging the external monitor in once again and this time nothing happened, the external monitor didn't even detect the laptop anymore. The powerlight on the external monitor that would normally be green if plugged in and working had turned yellow, however when I would unplug the laptop the external monitor would say NO SIGNAL, but when I plugged it back in, nothing would be on the screen and the light would turn yellow again. I tried removing the battery and AC Adapter and held down the power button for 30-60 seconds to do a power res... Read more

A:Hp Pavilion Laptop Screen not turning on?

Hi,Check the link below:Blank Screen LED Error Codes

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Hyy  i too have the same problem.How did you solved it plzz help me to solve it

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hi, my mom dropped my laptop when she was cleaning my room, and the screen went off. i banged it a little, and it worked all of a sudden. but it wouldnt turn on again after standby or shutdown.

A:mom dropped my laptop, screen not turning on

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I have a Compaq V3000 that has been working pretty well until I installed Windows Vista about 6 months ago. Then it started shutting off all the time randomly like 5 minutes after I would turn it on and I got that to stop. Then randomly I came home and my computer screen was black and I turned it off and took the battery out; however, the lights on the keypad stayed on...even the power light. Then when I took out the power cord and put it back it the lights turned off. Finally, after several tries, I got my computer to turn on all the way. Then I turned it back off that night and the next morning it would not turn back on. I have been working on it for over a week now and still get the same outcome. Here's exactly what happens:

I turn my computer on...then the Compaq startup screen comes up...then the screen goes black and when I try to hit F10 or F8, a real fast message comes and goes...it's hard to even read...but it says "Operating system not found." It did this before I got it to turn on that last time too...but then I got it to turn on. But now I just keep getting the same outcome. I got the F10 page to come up one time and I was told that my harddrive looked like it was going bad but they couldn't tell for sure.

Please help! : )

A:Compaq laptop screen goes blank after turning on

Well I see two possible solutions. A. OS problem or B. your HDD is going bad.

So what i would recommend is if you have a old HDD laying around use it and try reinstalling your os on it. if it works then your HDD is probably bad so purchase a new one.

Do you have any external harddrives hooked up to your system?

Answer me about the external first before proceeding

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I have a semi-new (destroyed) Acer aspire 5310 notebook. I took it apart, (the motherboard was down) and now I have a CPU (still connected, don't know can I do anything with it, if yes tell me) an optical drive, a hard-drive two speakers and an LCD. What I want is tu turn the LCD into an external LCD witch I can connect to anoter computer.

If it'll cost alot, I'll just buy a new screen for 100 and forget about the laptop.

I understand it'll take alot of work and I'm up for that.

The LCD has four wires coming out of it. One has a quite wide connector (pics if needed) coming from the left side of the screen. There are two small black and white wires, one coming from each side, which connect to a small circuit board, which has a wide connecting thing at the end, then theres one small wire which has a very narrow connector (two bit) and nothing else.

I'll give pics if needed and I'd really like some help.

A:Turning a disembodied laptop screen into an external LCD

Also, if theres any existing tutorial, I'll gladly just follow that. I havn't found any yet.

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When my friend turns on their xp laptop the screen goes white, then black and won't do anything. The cursor is on the screen and looks like it is loading but nothing ever happens.

A:When turning on XP laptop screen goes white, then black

May be caused by a bad hard drive...

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I was installing Kaspersky, to finish i had to restart the laptop. I did this but when my laptop switched back on i can not get past the lock screen. I would normally unlock it by either clicking the left hand button or swiping the mouse pad. It won't do anything!

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Turn off display is setup to 10 minutes on my HP ZBook Studio G3 and after it switches off it cant be switched on by pressing keys on keyboard, touchpad or connected mouse. Its just blank.I have to put it to Sleep using power button and turn on again. This is very inconvinient, please help.

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Is it worth turning off the Toshiba logos / splash screens that crop up before Windows 7 loads? I have been looking around to learn how to turn the off but have yet to find an answer I'm confident in!

If it is, where can I learn how to do it?

I have a Toshiba Satelitte C670 D - 11K, windows 7, 64 bit.

Thanks ...

A:Solved: Turning off splash screen on Toshiba laptop

You may be able to turn it off in the BIOS but it's rarely an option in laptops, but is it worth it...nope, it won't improve performance. I'm sure someone has found a way to flash a hacked BIOS onto some machines but I'd strongly advise against that as you could end up bricking the laptop.

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Hi, I am having a similar issue on my HP pavilion since the last few hours. If anybody found a solution to this, it would be really helpful. The screen has been grey all day with everything else working perfectly fine. Thanks

A:Re: Gray Screen Appears After Turning On Laptop, Frozen ( HP...

Hi there @Ayush14,  Welcome to the HP Support Community. I would be more than happy to help you! I read your post and I understand that you had replied to a previous thread called Gray Screen Appears After Turning On Laptop, Frozen ( HP b011nr ). There were many great steps and documents given by @Malygris1 on the previous post such as:  "The screen may not be black, but much of this could still help.Troubleshooting Black Screen Displays with No Error Messages During Startup or BootHere are some other sources I found for you to check out.Resolving Problems with Notebook Displays (Windows 7 and Windows 8)Diagnosing a Liquid Crystal Display (LCD) for Damage ...Performing an HP System Recovery (Windows 8)Troubleshooting HP System Recovery Problems (Windows 8)" Did you happen to try any of these steps? Have you connected the Notebook to an external monitor or TV? Please try this step first to see if the display on the external Monitor or TV is gray also.  Please note remove any and all USB devices. Disconnect all non-essential devices, as these could cause some issues. Have you tried performing a hard reset?Did you receive any error messages?Do you have any beep codes or blinking LED lights? How long has this been happening for?Have you done a BIOS reset?When you press the power button, do you hear a fan spinning sound?Do you see any text on the screen... Read more

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This morning, my laptop seemed to be working fine. I was on it for about half an hour but once I got home, and waited a few hours before using it, I went to turn it on and all it displays is a gray screen. This gray screen is smooth at first, but slowly deteriorates to a display such as this: Laptop Display Example  I really can't do anything else because this screen appears right after startup, and blocks me from using it any other way. If you look close to the deterioated screen, you can see tiny dots of different color. Buttons such as the wifi button, brightness levels, and the capslock still function. The screen will brighten or darken, and the lights on the other two keys turn on and off normally when clicked.  This upsets me because I have only had this laptop for about two years, the warranty is finished, and I've had so many issues with this laptop from the software to problems with Windows 8. I didn't do anything to damage the screen, and no one comes into my room who could have damaged it.  Also, I have tried removing the battery and removing the charger ( which it can't run more than 10 minutes without ) and letting it cool down, but when I turn the laptop back on, I recieve the same response. My laptop is an HP b011nr, at least that's what it says after 'model' on the bottom of my laptop. Bear with me, I'm not much of a computer person. 

A:Gray Screen Appears After Turning On Laptop, Frozen ( HP b01...

Hi @Tiffazure  Welcome to the HP Support Forums! I see your wonderful display and can imagine how helpful it isn't. Hopefully, I can help get you past that. The screen may not be black, but much of this could still help.Troubleshooting Black Screen Displays with No Error Messages During Startup or BootHere are some other sources I found for you to check out.Resolving Problems with Notebook Displays (Windows 7 and Windows 8)Diagnosing a Liquid Crystal Display (LCD) for DamageAnother idea, would be to try a system recovery, and just fix or reinstall the drivers and see if that helps. A full system recovery would result in data loss, so that is a last resort.Check this page out but as I said, just try the driver refresh, and see if that helps. Of course that also assumes that you can see the display to do it.Performing an HP System Recovery (Windows 8)Troubleshooting HP System Recovery Problems (Windows 8)Let me know if you have any success, and if not tell me what happens and I can try to find something else that could help.

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I do not have the Blue screen, but the Black screen that just shows up when I turn on my laptop along with the cursor.
Can anyone likely help please with this? Calling all experts! Trust me I did my due diligence and researched the incident, removed battery and plug, USB, held power button for 30 seconds, restarted the laptop, all to no avail.
Anyone up to help with this and if there's another way to fix the issue? It would be appreciated

A:Laptop when turning on Only shows Black screen and Cursor

Can anyone please help? It is Lenovo thinkpad

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I'm not sure if this is in the right area or not.

I had my laptop on and running fine for a few hours accumulatively (because I did put it in sleep mode ocasionally) last night and then one time I turned it off and when I turned it back on it lit up but nothing came up on the screen.

I turned it back off by holding down the power button and decided to let it cool down. Later I turned it back on and it was working fine seemingly and then it would "turn off" because the screen went black but the lights were still on. Then it would refuse to turn on for a while. I let it set overnight and I turned it on and it seemed to work again but then it did that thing I mentioned where the screen goes black but the lights are still on and it won't turn back on now. Well, it will turn on because the lights will be on but nothing will show on the screen.

I also think there might be a chance there is a virus on it. My alert keeps popping up and telling me that there is but it says it's quarantined and infected or something. I don't really know how to explain it.

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Hey all,
So I am writing on behalf of my mother.  Her laptop (HP Pavillion dv4 circa 2009, running on Windows Vista) won't start up properly.  Upon pressing the power button, the screen goes immediately to white.  No mouse, no HP or Window welcome screen, nothing.  I've tried turning it off and back on (multiple times), Ctrl+Alt+Del, and pressing the F8, F10, and F11 buttons (the ones I read were most likely to take me to the safe start/reboot mode) upon start up, but to no avail.  This happened for the first time today, she came home from work and started her computer and it did this.  She thinks the last she used it for was Facebook and online banking, the night before.  I don't know what else to do as thoe are the only key combinations I could find, and her screen will not display anything but pure white.
Can anyone help me?  I will try to get more information if you need it, but as I can't get the computer to start, it may be somewhat limited. 
Thank you so much in advance!

A:Laptop displaying white screen immediately upon turning on, won't start up.

There seem to be a large number of products using the tag "Pavilion DV-4".  More exact data for the model number might help.

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Here is the issue, when my computer goes to sleep after it's on for a while when I move the mouse to get the screen back up it shows the backround no icons or anything to click.
Same if I turn it off and turn it back on. I have to turn it off and on many times then go to safe mode and shut down then turn it on again for it to work. Just now I had to turn it on/off 4 times for it to show the icons and task bar. Usually it is left blank with nothing to click having no choice but to turn it off.
Norton says no viruses.
My computer is HP with windows 7. I bought it in 2011.
This problem has been happening for a long time. Please help.

A:When turning off computer & turning it back on again screen is blank

Hello squirrels and welcome to Seven Forums.

I think I'd start out by trying to do a startup repair. It's been suggested that the startup repair be done 3 times (regardless of what the notifications say) and the computer rebooted after each repair.

Startup Repair

If this doesn't fix the problem one of the Forum experts has prepared these troubleshooting guides with some additional suggestions.

Troubleshooting Windows 7 Failure to Boot

Troubleshooting Steps for Windows 7

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Whenever i turn the laptop on, in just 2 seconds it turns off by itself.

A:Help on laptop keeps turning off after turning it on?

Reseat Ram and HardDrive
Disconnect any externals especially USB
Test without the battery plugged in
Check for any build up of dust near where the fan is

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I'm having a BIG problem with the computer screen. Pixels on my screen keep turning green & pink. It also keeps changing the screen resolution by itself. I tried installing the latest graphics driver from Compaq, unplugging my phone, neither worked. I've provided an image below:

Please, please, can you help me!

A:Random pixels on screen turning red & green, with screen res changing by itself

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Hi everyone,

From last few weeks I'm having this strange and annoying blank screen of death. I could just see a blank screen (not a blue screen) while either waking up computer from sleep or while trying to turn on the display by moving cursor/typing something(waking up from power saver mode of display, I set display to be of after few minutes of inactivity). So essentially screen becomes total blank. Just once or twice I saw this BSOD "DRIVER POWER STATE FAILURE" but for all other times my screen is just blank. I could see the Hard Disk activity LED on during this blank screen. And almost after all subsequent boots, I could see "Windows has recovered from unexpected shutdown/serious error - Check for solution" message.

System - Windows 7 Pro x64 with all latest recommended and security updates
CPU - i7 2630QM
GPU - nVidia GT525M
MoBo - Factory default for Dell XPS L502X

First I suspected its because of my nVidia GT525M GPU drivers (I was using official latest drivers 320.49), so I completely uninstalled them with regular uninstall + DriverSweeper 2.1.0 from Guru3D.com. I did not install any nVidia/display drives since then. But just now I got another blank screen after it. Also I started connecting my PC to an old Sony Bravia TV with HDMI cable and that time the automatic installation of drivers failed. That is my second point of possible problem. I've been using CCleaner to clean the unwanted registry entries and revo uninstaller for almost every unin... Read more

A:Blank screen of death while wake up from standby/turning on the screen

The BSOD is caused by Intel(R) Centrino(R) Wireless-N 1030 driver.

Irp is active with 5 stacks 3 is current (= 0xfffffa800760f840)
No Mdl: No System Buffer: Thread 00000000: Irp stack trace.
cmd flg cl Device File Completion-Context
[ 0, 0] 0 0 00000000 00000000 00000000-00000000

Args: 00000000 00000000 00000000 00000000
[ 0, 0] 0 0 00000000 00000000 00000000-00000000

Args: 00000000 00000000 00000000 00000000
>[ 16, 2] 0 0 fffffa8009cd4050 00000000 00000000-00000000
Unable to load image \SystemRoot\system32\DRIVERS\NETwNs64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for NETwNs64.sys
*** ERROR: Module load completed but symbols could not be loaded for NETwNs64.sys
Args: 00014400 00000000 00000004 00000002
[ 16, 2] 0 e1 fffffa8009d9e470 00000000 fffff8000370b200-fffffa800c1f7510 Success Error Cancel pending
\Driver\vwifibus nt!PopSystemIrpCompletion
Args: 00014400 00000000 00000004 00000002
[ 0, 0] 0 0 00000000 00000000 00000000-fffffa800c1f7510

Args: 00000000 00000000 00000000 00000000
And the driver is old.

fffff880`06cd3000 fffff880`07555000 NETwNs64 T (no symbols)
Loaded symbol image file: NETwNs64.sys
Image path: \SystemRoot\system32\DRIVERS\NETwNs64.sys
Image name: NETwNs64.sys
Timestamp: Tue Jun 21 22:40:03 2011 (4E00D06B)
CheckSu... Read more

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Dear all, Happy new year and all

I wonder if you could help...

My husbands laptop this evening will not turn on AT ALL. It was working perfectly well a few days ago:

When the power button is turned on all that happens is the power light turns green. There is no sound coming from the hard drive (the hard drive light doesn't even show). In addition, there doesn't seem to be a fan working. And finally, there is a light strange noise (not a hard drive noise).

I am wondering whether it is a motherboard issue????
Woud creating a recovery bios boot CD help? Would like wipe the hard drive?

The major problem is that the laptop is used for all our business transactions and GASP.... we haven't backed it up, so we could potentially lose very important data
Many thanks and I do hope somebody is out there to help us.

Much geekness

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Hello everyone! Iv'e been having an issue that's driving me crazy and i'm hoping someone here can help.

The issue i'm having is when my computer goes into sleep/hibernate mode and i wake it up, the screen appears to have a resolution issue ( picture attached ). I figured this wasn't a big deal so i turned sleep/hibernate mode off and just turn my screen off when not in use. I'm getting the exact issue though! When i turn my screen off and back on, the resolution is messed up.
So now i need help resolving this. If it also fixes it for the sleep/hibernate mode, that would be great but not necessary
The ONLY recent change is I upgraded to an Asus GTX560 Ti DirectCU II Top OC graphics card. I installed the card into my computer and windows automatically downloaded the drivers for it.

Things i've tried:
1)Uninstalled and reinstalled graphics drivers using windows update and then again through Nvidia website
2) Currently using HDMI, but get the same issue with DVI-D (single) cord
3) Completely reinstalled Windows 10 Pro from scratch
4) Double checked all connections
5) Look through settings on my TV and settings on the graphics card through Nvidia Experience
6) Googled similar issues, but im not finding many that have the SAME issue as me
My setup:
CPU: Core 2 Duo E8500
Mobo: Dell OTP412 X38
GPU: Asus GTX560 Ti DirectCU II Top OC (1gb DDR5)
PSU: Corsair CX650
OS: Windows 10 Pro
Screen/Monitor: 50" Sharp LED/LCD TV ( Full 10... Read more

A:Screen/Resolution Issues When Turning Screen On/Off

You appear to have a very old Dell (OptiPlex?) model desktop.
What is its model name and model number?
What is the exact "service tag" and "express service code" numbers on it?

Is it running Windows 10 Pro 32-bit or 64-bit?
You should download and save the appropriate driver from the NVIDIA site, then select the custom install option, then select the clean install option.

Are you having the same issues when using a standard computer monitor instead of using a HD TV?


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After I close the screen (closing the lid over the keyboard). Instead of going into standby and then turning back on when I open the lid (screen), the screen doesnt come back on and I have to restart the computer. What is going on. P.S. I have XP tablet edition. Thanks

A:Screen not turning back on after closing screen

It does come back on after I manually put it on standby

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I have a Dell Inspiron 15r 5520

It all started last Friday when the dreaded "Plugged in, not charging" happened. Little by little I had the laptop plugged in and eventually the computer just failed to work. I opened it up and pulled out the Ac/dc power jack and low and behold a port wire is broken, so I replaced it.

I also tried to turn it on after that, then I found out the Power Button was broken, so I replaced that.

After replacing all of that the Laptop refuses to turn on. 
I do have a charger on the way and now I'm wandering: Should I have the charger plugged into the computer while I wait for the other one to show up, or should I keep it in and attempt to charge my battery?

My lights for anything will not turn on at all, so I'm also wandering if the motherboard is dead? It would be a shame if it is since I just purchased a replacement last summer.

1. Charger stopped charging and became a plugged in not charging
2. Replaced Power Button and broken Ac/dc powerjack 
3. Computer fails to turn on 
4. No lights down at the 4 light panels even when charger is plugged in.

Thank you in advance if you are able to assist me in this issue.

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HiMy pavilion x2 won't turn on, it had been on charge but as soon as you plug it in the light turns red and immediately go back to white? When you press caps lock the light comes on however the screen is dead

A:Laptop not turning on

Hello, Thank you for posting in the HP Support forum.   These 2 articles are general ones but covers pretty much any scenario in the case of Computer cannot start. Here they are>> http://support.hp.com/us-en/document/c03515402>> http://support.hp.com/us-en/document/c03518165 Please, read them and follow the appropriate step for your case.  Let me know if this works for you. Looking forward to your reply.

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I have just installed a new crucial memory into my laptop so it is now 8gb rather than 4. I ran the diagnostic tests and all good. However my laptop now keeps turning itself off. When i reboot the message i get is --- product information not validthe following product information programmed into the system board is missing or invalidsysem board - system board ct numbersystem board (00A) - system board ct numberenter - continue startup  What do i do, the laptop keeps switching it self off and more regurly the longer i reboot it. Please help!!! Simon 

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I'm very confused by this. Twice now at my uni house where my computer stays out on the desk it has turned itself on. This hasn't happened to me while I was at home over christmas where it lives in a bag (thank god lol fire hazard).

I told it to hibernate last night, turned off the plug and there were no lights on anywhere, but when I got up today it was on. I went to the event viewer but they only start at 13:45 (about when I got up).

I thought it might mention when it was powered on or when something started but it started with browser.

I'm very confused

A:Laptop turning itself on.

You may find that you have to set to disable
the abilty to wake from
keyboard or mouse or Nic card
Power Options and Sleep Mode Problems - Vista Forums

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From last two months i am facing the problem while turning on my laptop.
Only on continuous pressing POWER BUTTON for 10-20 times it turns on.
Its completely on its mood.
What to do for this

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im using dell inspiron laptop N4110 during installing windows 7 an error occured in extracting files and while im trying to installing windows 10 the screen turned black and from them screen is not appering even cannot  see the boot menu only power button is glowing plz help me to fix this issue

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I have just installed a new crucial memory into my laptop so it is now 8gb rather than 4. I ran the diagnostic tests and all good. However my laptop now keeps turning itself off. When i reboot the message i get is --- product information not validthe following product information programmed into the system board is missing or invalidsysem board - system board ct numbersystem board (00A) - system board ct numberenter - continue startup  What do i do, the laptop keeps switching it self off and more regurly the longer i reboot it. Please help!!! Simon 

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This afternoon I set up my laptop and pressed the power button. The fans turned on, and the lights on the bottom left of my laptop turned on signalling that my laptop was plugged in and on however the screen didn't do anything and the keyboard seems like it's not responding. I have no idea how to fix this other then sending it for repairs but i'd like to avoid that so i am now posting this.

I'd appreciate the help!

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I was just using my laptop and than left it on charge, when I came back to it the screen was blank, so I thought it had gone off. Now it does not turn on, and when I plug the charger into the laptop the power light on the charger goes off. however if it is not plugged into the laptop than its fine. Could anyone advise me on what to do? Is it my laptop or my charger thats the problem?

I have a Dell XPS, M1330, windows vista ultimate.

really hope someone can help, I need my laptop!

A:Laptop not turning on,

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The computer does not turn on. Sometime ago I noticed that the white LED light on the power button was not on but the computer was turning on and working ok otherwise; so I did not pay attention to it. One day the computer simply did not turn on at all. I removed the battery and kept the laptop connected to the wall and I tried resetting by pressing the power button for up to 2 minutes before trying to turn the laptop on again, but it did not work. I let the computer sit for two days and it turned on when I pressed the power button (although the LED light on the power button still remained off). The laptop worked ok for two days and when I tried to turn it on on the third day, nothing happened. There is only a steady white led light, right next to where the AC cable connects to the laptop. There is nothing else. No sounds or beeps of any kind, no fan turning on, just the light next to where the AC connects to the laptop.  I tried a different cord and the same thing. Is it the power button? Is it the motherboard? when the computer worked after the two day window, I scanned it using the HP diagnostics software built into the system, and I got a code indicating the battery was defective so I have ordered a new HP battery, nevertheless when I tried scanning for the BIOS, I got a response the system could not read the BIOS.Please help. My laptop is about five yrs old and I do not have money to buy another computer or even to afford an expensive repair. Tha... Read more

A:Laptop not turning on

Welcome @G72HP, I understand you're having trouble with your HP G72 Notebook not powering up. I'd be happy to assist. I going to suggest starting with these documents:  HP Notebook PCs - Battery Does Not Power Notebook or Hold a Charge HP Notebook PCs - Computer Does not Start (Windows 7, Vista, XP) Please get back to me with the results. If this helps please hit that Thumbs Up Button below. Cheers,TechSurge.

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I shut down my laptop yesterday. It won't start today. If I plug in the charger the charging light I glowing but when I switch on the power button nothing happens. I tried the hard reboot method. Removing the battery and charger holding the power button for 20 seconds and then if I plug in just the charger(adapter) then there is no charging light and the laptop still not switching on. I also tried NOVI button it's just displaying Lenovo and getting switched off. Kindly help me as soon as possible. Thank you

A:Laptop Z40 not turning on.

Hi, Abhilash  ?
Thank you for writing in to the Lenovo Forum - happy to have you here today.
Pull CMOS battery and wait ~1min.
Update us how it goes.
Tap that kudos button if I helped  If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

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my laptop dell inspiron 15 (3521) is not turning on. it is giving continious beeps. i dont know whats wrong with that laptop. Please help me.

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Hi I recently obtained an older laptop (3-4 years) for simple college school work and such, but I am having a problem of actually getting it to turn on. I've checked the battery and the power cord, also I've checked the power cord port to make sure it isn't loose. Was wondering if I could get any feedback on to why it won't turn on and maybe what I could do to fix it.

A:Laptop Not Turning On

Hi R-Ie, and welcome to BleepingComputer.

I take it there is now signs of life when you turn it on, no a LEDs, no fans?

If you have a volt meter you might want to see what the voltage is coming out of the adapter. If you have proper voltage there then check the battery. Also check for loose connections of the charger.

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hello everyone!

My laptop has been having various problems that come and go for a few months now, but most were just small annoyances until recently...I decided to install Ubuntu on my system because I had a really bad virus infection and I liked ubuntu..everything worked fine and I experinced no problems until recently, because now my laptop wont turn on. When I press the power button I hear fans coming on and it souns like its working but the screen doesnt turn on and the fans stay on for a second, pause for 5 seconds and then continue working like im playing a graphics intensive game. I suspect it could be mobo/CPU damage since my computer has always run really hot (almost burned me once). Any advice on reviving/testing my computer? (BTW sorry about my grammar and spelling but Im in a rush)

A:Laptop not turning on

if you want help, tell the model of your notebook.

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My computer just shuts off by its self, no warning or anything. It is not the power save feature. Norton Virus after being updated does not catch anything. Do you have any ideas?

A:laptop keeps turning off by its self

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