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Disabling Secure Boot on Thinkpad Yoga S1

Q: Disabling Secure Boot on Thinkpad Yoga S1

I am trying to disable UEFI Secure Boot on my Thinkpad Yoga S1 but it keeps getting re-enabled after a reboot. If I set secure boot to disabled I can boot into the non secure OSes installed on the machine imediately afterwards but if the machine is restarted the Secure Boot seting in the BIOS is re-enabled. It's important for me to have secure boot disabled as I use OSes without secure boot.

I try to disable Secure Boot in the BIOS on the following screen :

Link to image 1

But if I re-enter the BIOS either after booting into an OS or simply re-entering the BIOS, Secure Boot is back on:

Link to image 2

I have also tried to disable "OS Optimzed Defaults" but it also returns to enabled after a restart.

Link to image 3

Some of the other BIOS settings save correctly so I can't figure out why the secure boot settings don't. The BIOS version I have is the latest (1.18).

Any ideas what I'm doing wrong? It's inconvenient to manually disable secure boot each time I want to use the laptop. The two operating systems (Ubuntu and Android x86) do work reasonably well once booted.

Thanks!

Juan

Moderator note: large image(s) converted to link(s): About Posting Pictures In The Forums











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RELEVANCY SCORE 200
Preferred Solution: Disabling Secure Boot on Thinkpad Yoga S1

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A: Disabling Secure Boot on Thinkpad Yoga S1

I'm having the same issue. I've experienced this with 4 brand new yogas. I will enter bios, disable secure boot, enable legacy pxe and upon reboot the changes are lost. I'm saving changes and exiting. Resetting user mode options, saving changes and not exiting, those have inconsistently allowed me to keep my changes long enough so i can legacy boot.

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RELEVANCY SCORE 73.2

By Eduard Kovacs on August 10, 2016
Microsoft has been attempting to patch a serious Secure Boot vulnerability that can be exploited to bypass the security feature and install rootkits and bootkits on Windows devices. Researchers believe the security flaw cannot be fully patched.

-

On systems where Secure Boot is locked down and cannot be disabled (e.g. Windows RT, HoloLens, Windows Phone), configuration changes can be made using policies, signed files loaded by the boot manager (bootmgr) from a UEFI variable. There are some boot loader executables (EFI files) signed by Microsoft that can be used to provision such policies.

Before loading a policy, bootmgr checks it to make sure it?s valid. However, researchers discovered that Microsoft introduced a new type of Secure Boot policy during the development of Windows 10 Anniversary Update (v1607) that can be abused to bypass the security feature.
 

A:Secure Boot Vulnerability Allows Disabling of Secure Boot

Microsoft introduced a new type of Secure Boot policy during the development of Windows 10 Anniversary Update (v1607) that can be abused to bypass the security feature.Click to expand...





Researchers believe the security flaw cannot be fully patched.Click to expand...

Really Microsoft...
 

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RELEVANCY SCORE 72

The on-bezel windows button is extremely sensitive. So much so that I often activate it accidentally while using the laptop in tablet mode or writing. Is there any way to temporarily disable the button, at least while I'm using the laptop in tablet mode?

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RELEVANCY SCORE 70.8

Hi, I can't disable Secure Boot on my ProBook 6465b. I can't find a menu item in BIOS Setup. firmware version: 68LTU ver. F.61

A:Disabling Secure Boot

Unfortunately, your notebook does not have that capability. 

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RELEVANCY SCORE 69.2

I tried to downgrade from win10 to win7 pro but was unable to do so , however i disabled secure boot thinking it will help , now my laptop wont start .when i power it on it asks for an admin passwordas usual but when i enter it in the screen goes blank , im unable to access bios to revert my mistake or do anything , i dont even see the hp logo or anything , please i desperately need help with this

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RELEVANCY SCORE 69.2

I have preinstalled Windows 8 on laptop (Toshiba P870) with secure boot enabled.
Will it still boot if I disable secure boot in BIOS?

I have 2 HDD - Windows 8 installed on first drive.
When I install linux on second drive - I have authentication error booting it.

Wil Windows 8 boot OK if I disable secure boot in BIOS?

A:disabling secure boot in BIOS for Windows 8 - is it OK?

Welcome to EighForums.







Originally Posted by jys


I have preinstalled Windows 8 on laptop (Toshiba P870) with secure boot enabled.
Will it still boot if I disable secure boot in BIOS?



YES.






Wil Windows 8 boot OK if I disable secure boot in BIOS?



YES.






I have 2 HDD - Windows 8 installed on first drive.
When I install linux on second drive - I have authentication error booting it.



You will need to add the Secure Boot authentication code to the UEFI/BIOS firmware settings. If want Secure Boot ENABLED.

How to dual boot with Ubuntu & Windows 8, with Secure Boot ENABLED.
Practical UEFI Secure Boot (Part 3 of 3) - YouTube

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RELEVANCY SCORE 69.2

Hello,
My HP Envy Phoenix 810-470 desktop PC refuses to acknowledge that we've disabled Secure Boot. After we save the changes, It's supposed to restart. The screen turns black, and we waiting for ten minutes for it to give us the screen where you're supposed to
input the code to authorize the change, but that screen never appeared.
Does anyone have any suggestions as to what the issue may be?

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RELEVANCY SCORE 68.4

no csm option after disabling secure boot and setting up supervisor password. asus e402na. bios version american megatrends 306.

I need your help because no csm option only fast boot on boot tab.
 

A:bios problem no csm option after disabling secure boot

also i would like to downgrade windows 10 to windows 7 but the installer is stucked up on windows logo. maybe if the csm option will appear then i could clean install windows 7.
 

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RELEVANCY SCORE 65.6

Hello,
I tried to solve an installation problem for a friend of mine by GPT and as I tried to complete the installation, I most probably made a mistake in trying to turn UEFI boot on. I invalidated the legacy boot option and now the system does not start at all, no Dell logo nor anything else. I tried to boot on several installation DVDs with no results.

Is there a way to reset the settings I made in the BIOS ?
Is there any other solutions to boot ? Is possible that, I am able to find one, an UEFI iso image could be used to start from the DVD and go on with  the installation ?
I think the BIOS version was A11 but I am not 100% sure. Anyway, I am pretty sure I did not try to boot aother BIOS.
Is anyone can help me ;-)

A:Dell desktop: complete blank screen after setting Secure boot ON and disabling legacy

Glad that solved the problem. 
Please mark this thread as 'solved'
Thanks!

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RELEVANCY SCORE 64

Hello, I was wondering if any of you might be able to help me. Today I opened my laptop and saw a message that read: Secure Boot Image failed to verify with *ACCESS DENIED* Press any key to continue. I can enter BIOS w/F1 when I press the power key, but that seems to be the only place I can go, and most of the options are grayed out. It won't let me disable secure boot. It won't allow me to enter an administrator password (It is enabled, but pressing enter gets me in.  Option is grayed out).  F9 does nothing at all.  There is no USB, external harddrive, CD or DVD involved.  I pressed F11 on startup in an attempt to restore the system, but all I'm able to get is a stationary white cursor line in the upper left corner of a blank screen. Any suggestions would be much appreciated. (Background: My computer is a Lenovo Thinkpad X1 Carbon, and I was running Windows 8 until the free Windows 10 upgrade came out a few months ago. I haven't installed anything in a while except Windows and Lenovo updates. I've had a bit of a heating issue, so eight days ago I replaced the thermal paste. The machine's been running much cooler, but I've been experiencing random hibernations--usually once every 3 hrs. or so, but occasionally two in 15 min. A few of those times, I had a message that said something about my battery not being detected, and this happened both when the computer was plugged in and when it wasn't. It still charged like normal.)

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RELEVANCY SCORE 63.2

Hi  I have a X1 Yoga, 1st Gen Windows 10. I'm trying to do a SSD upgrade. The problem is that I am unable to disable the secure boot option within the BIOS. When I enter the BIOS and authenticate using my fingerprint and password. I then navigate to secure boot option to disable but when I attempt to make the select disable the machine just beeps. Has anyone else encountered the same issue and how did they manage to disable the secure boot?

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RELEVANCY SCORE 61.2

I recently had a problem with my yoga 300 running windows 10. I want to install windows 7 from usb and had no problem up until I reach  Select drive it then tells me that " Windows cannot installed to this disk This computers hardware may not support booting to this disk.Ensure that the disks controller is enabled in the computers BIOS  memory." Also in my bios security tab I have no option to turn off secure boot  

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RELEVANCY SCORE 60

Computer  was working.fine, did a reboot and now has 'To interrupt normal startup press enter' displayed on the top right. If I let it continue it shows blue screen with unexpected error occurred,  error 0000225, I try to enter recovery with F1 and it just reloads back to the same recovery screen. I've tried with a windows 10 and windows 8.1 install same results.  If I plug the drive into my desktop I can see all my files no problem.  I bought a new SSD and when I try to install Windows the logo comes up but after some time, maybe a minute, it drops to recovery again and says the bios is not fully ACPI compliant, error 0000225 and stops. I've tried disconnecting the bios battery for about 15 minutes and tried again with no luck, same result on new ssd and install.  I'm lost a this point, any ideas? I'm going to try a Bios CD updated tomorrow but I dont have much hope. Cannot get to a command prompt or anything... Video link https://www.dropbox.com/s/s27pnnk38ta43kt/pc.url?dl=0


























IMG_20171220_165935.jpg ?2788 KB

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RELEVANCY SCORE 59.2

After installing Windows 10 b1803, renabling "Secure Boot", cuases the device to attempt to repair the hard drive.  Disabling "Secure Boot", the device boots Ok. This behaviour was NOT part of Windows 10 b1709.  "Secure Boot" worked Ok.  

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RELEVANCY SCORE 59.2

Hi there, I turned on my thinkpad yoga the other morning and it would not boot into windows 8. It displays a black screen for a while and then returns to the boot device screen. I have tried to reinstall both windos 8 and linux on the the ssd using a usb bootable install drive. Both systems install but they fail to boot, displaying a black screen and then returning to the boot device list when it fails. I have also tried with a new ssd and it gets the same problem. I am able to boot to a complete usb linux system which fully operates. Does anyone know where the problem might lie? Thanks, Richard

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RELEVANCY SCORE 59.2

I have had the thinkpad S1 yoage for around a year and a half. 5 days after the warranty ran out the laptop decided that it didn't want to boot up or charge anymore. After a few days of checking cable connections and trying different methods that I read online I managed to get it up and running again. Now half a year later the same problem has happened again except this time I have spent weeks trying to repair it. Does anybody know how to fix this? I dont get any beeping sounds from the motherboard just the power indicator flashes 3 times. I have tried different chargers as well, nothing has worked so far

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RELEVANCY SCORE 59.2

Hello, I got a new X1 Yoga in my hands. Its a nice notebook. Using the Pen makes fun and so on. But there is one problem. After reboot or shutdown/and boot the X1 stucks sometimes. I can see the Lenovo Logo, the black background and the message "to interrupt normal startup, press enter". If I press "enter" nothing happens. I can use CTRL-ALT-DEL to "reboot" to the same stuck behavior. Only the Power button helps. The designated user won't be lucky about theat problem.  

A:Thinkpad X1 Yoga (Gen2) do not boot sometimes

Do you have the latest BIOS?  It sounds like something is timing out.  How long to you let it sit before hitting the button?

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RELEVANCY SCORE 59.2

Hi there, I turned on my thinkpad yoga the other morning and it would not boot into windows 8. It displays a black screen for a while and then returns to the boot device screen. I have tried to reinstall both windos 8 and linux on the the ssd using a usb bootable install drive. Both systems install but they fail to boot, displaying a black screen and then returning to the boot device list when it fails. I have also tried with a new ssd and it gets the same problem. I am able to boot to a complete usb linux system which fully operates. Does anyone know where the problem might lie? Thanks, Richard

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RELEVANCY SCORE 59.2

My Thinkpad X1 Yoga is connected to my work network via a OneLink Plus.  I have a wireless keyboard and mouse connected.  Since the last bios update, when I power up the laptop, a boot menu pops up and I have stop, open the laptop, and select my hard drive using the laptop's screen and keyboard. Is there a way to disable this menu? 

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RELEVANCY SCORE 59.2

does anybody know if that is PXE boot is a boot option for this laptop / 2-in-1?thanks in advance













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A:PXE BOOT on Lenovo ThinkPad Yoga 370

Hi Vincent_Thunder,Warm Greetings & welcome to Lenovo Community, happy to have you here.
 
Looking at the User guide, page 71 this model does have an option of PXE Boot.
 
I hope the above information helped you.
Please feel free to post in Lenovo Community Forums if you have any further queries!
 
Regards,Prabhansh_______________________________________________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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RELEVANCY SCORE 58.4

 So I just purchased a refurbished Thinkpad Yoga, and all was great for a little while. Then I decided to shut it down and set it aside for a few minutes. After coming back, it now refuses to even POST. I tried every power cycle I could think of, in various combinations, and browsed several forums. In the end I found no functional solution. Current Status: System responds in no way other than the 'i' light (in the Thinkpad logo) blinking three times when the charger is connected, or the same when the reset button is pressed while the charger is still connected. Nothing else illicits any sort of beep, light, or otherwise. Any help is greatly appreciated. Thanks and regards.












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A:Thinkpad S1 Yoga - Won't boot, only blinks light t...

I have a feeling you had opened up the back cover to fiddle around with the components (be it a change of SSD or the 3g/4g modem). the symptoms you described sounds exactly like a disconnect MB cable. you can try to open up the back cover, and around the left side, you will see a cable labelled "MB". secure it properly, and the computer should be responsive now.

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RELEVANCY SCORE 58.4

I can't believe I can't figure this out. Why do they make it so complicated now?  How to I reach the boot menu from this Yoga 15 Thinkpad??????????????

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RELEVANCY SCORE 58.4

I can't believe I can't figure this out. Why do they make it so complicated now?  How to I reach the boot menu from this Yoga 15 Thinkpad??????????????

A:Yoga 15 Thinkpad. Boot menu. How do I reach it.

Usually you just keep tapping F12 (or Fn + F12) fairly rapidly while booting your system up.

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RELEVANCY SCORE 58.4

While preparing to return my Thinkpad Yoga to my office, I wanted to remove my boot password. I entered the BIOS setup, Security, Password option and the tried to change the password. I entered the existing password and as New Password a blank (or Enter) and the same for the confirm your new password option. However, on reboot it still asks my for a password and doesn't accept either a blank or the old password :-(What have I entered by hitting Enter for the password if it isn't a blank? Any help would be much appreciated since the computer is not completely unusable.Wim

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RELEVANCY SCORE 58.4

My 1 month past warranty thinkpad S1 yoga 12 will not boot.  it boots to Boot menu /App Menu.  Diagnostics show no error.  i can get into setup but still can not boot.  any help appreciated 

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RELEVANCY SCORE 58.4

Hi Everyone! I have a Thinkpad Yoga 12 and recently I am experiencing a rather serious problem with the machine.If I have a drive in it, it will simply not start the booting process and will freeze on the "press enter to interrupt..." screen. Whenever I remove the disk (SSD) the computer starts and I can access BIOS/Diagnostics/Etc. but when reinserting the SSD everything stops and the computer freezes on start.This problem is very annoying because without a proper boot I cannot update the BIOS or do anything with it at all. Did anyone else experience something similiar?I checked the SSD in a different computer and it works without a problem.

A:Thinkpad Yoga stuck on boot screen

Hanging on startup with a disk inserted would most likely indicate either a bad SSD or a bad SATA control circuit (motherboard).  If the disk is OK, that leaves only one part.  

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RELEVANCY SCORE 58

Hey there, everyone.I've got this 2 year old ThinkPad Yoga 12 that was working fine one day, and then won't boot at all the next. No screen activity, no backlight on keyboard, nothing except for a solid light on the "i" and then nothing. I've tried taking out both batteries, I've tried all kinds of combos of power button pushing, and I tried the reset switch. That caused the light to blink three times and now it's not doing anything. It does blink when I put the power cord in. Is my mobo borked, or is there something I haven't tried? Thank you!!!

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RELEVANCY SCORE 58

In the last month I purchased a Thinkpad X1 Yoga 2G and the Thuderbolt USB C dock. Since the USB C cable that comes with the dock is too short to allow the dock on the right and laptop on the left (in laptop mode), I put the notebook in tent mode and all works fine---except... Everytime I power up from hibernate it starts beeping about once a second and does not stop. I have to disconnect from the dock, flip it to laptop mode (this is where the beeping stops), return it to tent mode, and then plug the dock back in. It seems that Lenovo, like everybody else, is rushing things to market with plans to fix bugs later (maybe). Any thoughts I how to stop the beeping?  The first time it happened I closed all the apps to reboot and it still was beeping. Thanks.

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RELEVANCY SCORE 58

After updating Onelink Pro Dock to firmware version 2.30.000, system boot is no longer possible with closed lid.Opening lid after starting boot doesn't help, only way out seems to be an emergency power off.Booting system with open lid works fine, even when closing lid before logon.System is Thinkpad Yoga 15 running Windows 10 Pro.Thinkpad Onelink Pro Dock driver is 1.08.36Setting Boot Time Extension in BIOS doesn't help anyProblem didn't show up before firmware update.Any suggestions?

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RELEVANCY SCORE 58

Hi,I received my new ThinkPad X1 Yoga 20FQ one month ago. I'm very happy with it but for one week I'm very often unable to type the power-on password. When I turn on my X1 Yoga (3 times out of 4), the keyboard seems to be not working and I'm stuck at the padlock password prompt. I must insert a paperclip into the reset hole and restart to be able to get the keyboard working and be able to enter the password.  I'm wondering if anyone else have any similar issue and if so, if there is a simple way to fix it? or if I should return the X1 Yoga?  Thanks for your help,Steven

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RELEVANCY SCORE 57.2

Hello. I'm having a substandard issue with my Lenovo Yoga Laptop that I will try to explain in complete detail. First I'll summarize what's going on, then I'll list all  the details that could be related to this problem, no matter how small, in order of most likely related to least likely related. I'm an IT technician so I have some grasp of computer troubleshooting, just keep in mind. Alright, so the issue is that my Lenovo ThinkPad Yoga (can't find exact model, label only days Yoga and its dated in 2013) will not boot into Windows 10 after I have done an upgrade from Windows 8.1 using Microsoft's media creation tool. More specifically, I was able to do the firat time setup and boot on once but after searching for Windows updates and restarting, the computer will not boot on. The most likely reason for this I believe is that the laptop doesn't recognize the SSD with Windows 10 on it. It can detect it in some ways but not others. In Lenovo diagnostics I'm not able to run a storage test, which is an option I know is usually there because I've troubleshooted these before, which leads me to believe it doesn't recognize it. However, boot menu and BIOS recognize the drive. Attempting to boot to it from boot menu gives a long black screen and then it takes me back to boot menu. Letting my computer boot up normally also gives a long black screen after the ThinkPad logo and the automatically goes to boot menu. The other diagnostics for Lenovo hardware all pass. So some... Read more

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RELEVANCY SCORE 57.2

Hello. I'm having a substandard issue with my Lenovo Yoga Laptop that I will try to explain in complete detail. First I'll summarize what's going on, then I'll list all  the details that could be related to this problem, no matter how small, in order of most likely related to least likely related. I'm an IT technician so I have some grasp of computer troubleshooting, just keep in mind. Alright, so the issue is that my Lenovo ThinkPad Yoga (can't find exact model, label only days Yoga and its dated in 2013) will not boot into Windows 10 after I have done an upgrade from Windows 8.1 using Microsoft's media creation tool. More specifically, I was able to do the firat time setup and boot on once but after searching for Windows updates and restarting, the computer will not boot on. The most likely reason for this I believe is that the laptop doesn't recognize the SSD with Windows 10 on it. It can detect it in some ways but not others. In Lenovo diagnostics I'm not able to run a storage test, which is an option I know is usually there because I've troubleshooted these before, which leads me to believe it doesn't recognize it. However, boot menu and BIOS recognize the drive. Attempting to boot to it from boot menu gives a long black screen and then it takes me back to boot menu. Letting my computer boot up normally also gives a long black screen after the ThinkPad logo and the automatically goes to boot menu. The other diagnostics for Lenovo hardware all pass. So some... Read more

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RELEVANCY SCORE 56.8

Hello Community,Please help me with this issue that frustrates me. I try to? ?re-install Linux (Manjaro) on my Lenovo X1? ?Yoga? (?1? ?Gen?) ?as dual boot? (?Win10?) ?after SSD replacement.I can boot UEFI? ?from a USB flash drive.? ?Linux life USB ?boots without issues only that after boot has finished the notebook keyboard and touch pad does not work.? ?The touch screen is working.Linux and Win10 were working without issues prior to the HW change (SSD card, followed by motherboard, screen and keyboard).Win10 works and Linux at Grub level works, however after boot the keyboard and touchpad does not. What I did:Started Windows10 , rebooted need to press F12 to get to boot order, selected USB HDD, booted.Same result. Can use the keyboard in selecting of e.g. driver free or nonfree; and then start the boot process. After boot, only touch screen works, keyboard and touchpad are not working (that is the same for current and earlier Kernel Linux versions ( tested Manjaro (Arch), Mint (Debian), Puppy (Ubuntu), Solus). What could I do next to troubleshoot this issue which must be software related. Thank you for your interest in helping me. Kla

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RELEVANCY SCORE 54.8

Two ThinkPad X1 Yoga Gen2 TabletPCs will successfully boot into Windows 10 just fine from a hard poweroff.  But once in windows, if i choose Restart, it will hang at the "LENOVO" BIOS  level boot up logo with "To interrupt normal startup, press Enter".   Stuck at Lenovo BOOT BIOS initialization screen, right before handoff to the Operating System. "To interrupt normal startup, press Enter" At this point, pressing ENTER does not work.CTRL-ALT+DEL causes the screen to change shade for a moment, but effectively does nothing.Changing the UEFI settings to diagnostics results in black screen.Holding the power switch to force a poweroff, waiting a few moments, and then powering on results in a successful windows startup.  DevMGMT.msc does NOT see bluetooth and there is "Unknown USB Device (Device Descriptor Request Failed)" entry under "Universal Serial Bus controllers".  I have run all automatic updates via "Lenovo Vantage" and the manual TPM update.   I can boot into the firmware setup and have had it revert to factory defaults and reverted to factory defaults for all security settings.   I even tried the Win10 repair startup problems, but it says it cannot fix this.   

A:ThinkPad X1 Yoga Gen2 does not Restart, requires hard power off. Stuck at Lenovo boot logo.

It looks to me like you have a faulty hardware issue or a serious driver issue. Try the Lenovo recovery to put the device back to the factory windows install. If that fails, I would think you have a hardware issue.

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RELEVANCY SCORE 54.8

I have a Dell XPS 8700 that failed Windows 10 anniversary update until UEFI secure boot was turned off. It apparently then completed but I cannot re-enable secure boot without the same boot problem advising
Recoveryyour pc/device needs to be repaired / during Windows 10 anniversary updateAn unexpected error has occurredError Code 0xc0000185you'll need to use recovery tools.   Is there a solution to enable UEFI secure boot ?
 I am using a Dell XPS 8700 pc with an SSD drive. The Windows 10 update was installingthen after one of the reboots the error above  The pc was running prior to the update and had UEFI OS , secure boot enabled,  no prior problems.I attempted to do any of the safe mode boots but none would proceed.Disabling the UEFI safe/secure boot mode apparently let the install continue and the das it did before with I believe completion of the installation of Windows 10 anniversary update.PC now shows Windows 10 home Ver 1607 ..
The problem returns if I enable UEFI secure boot and the PC stops. I would like to determine a wayto locate the problem or issue. related to the secure boot.  Using the media creation tool may justrepeat the problem once secure boot is re-enabled.
 Dell lists that they have tested XPS 8700 with this update and have not indicated problems no mention of secure boot issue.

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RELEVANCY SCORE 54.8

I have a Dell XPS 8700 that failed Windows 10 anniversary update until UEFI secure boot was turned off. It apparently then completed but I cannot re-enable secure boot without the same boot problem advising
Recoveryyour pc/device needs to be repaired / during Windows 10 anniversary updateAn unexpected error has occurredError Code 0xc0000185you'll need to use recovery tools.   Is there a solution to enable UEFI secure boot ?
 I am using a Dell XPS 8700 pc with an SSD drive. The Windows 10 update was installingthen after one of the reboots the error above  The pc was running prior to the update and had UEFI OS , secure boot enabled,  no prior problems.I attempted to do any of the safe mode boots but none would proceed.Disabling the UEFI safe/secure boot mode apparently let the install continue and the das it did before with I believe completion of the installation of Windows 10 anniversary update.PC now shows Windows 10 home Ver 1607 ..
The problem returns if I enable UEFI secure boot and the PC stops. I would like to determine a wayto locate the problem or issue. related to the secure boot.  Using the media creation tool may justrepeat the problem once secure boot is re-enabled.
 Dell lists that they have tested XPS 8700 with this update and have not indicated problems no mention of secure boot issue.

A:XPS 8700 needed UEFI secure boot disabled to complete Windows 10 anniversary update can't enable UEFI secure boot now

rdubayah,
If your computer was running WIndows 10 without any issues prior to downloading the Anniversary update, then you would not have had to change any settings in the bios to install the update.The UEFI and Secure Boot settings are to enable booting with a USB or DVD to install Windows.
Disable Legacy Boot Mode and Enable UEFI
Start the computer and TAP the F2 key to enter the bios. Once in the bios Press F9 to Restore the bios to the Default Settings. F10 to save changes and exit. You could have a hardware problem. To run a hardare diagnostics on the computer you would start the computer and TAP the F5 key. Insert a cd/dvd in the optical drive for running the diags.

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RELEVANCY SCORE 54

Hello,

I'm trying to disable UEFI on my computer. I did this on some other PC's and it all worked out fine, but I got stuck with this one.

The BIOS does have a "secure boot", "fast boot", and "quiet boot" option, but even when I disabled them all I could still only boot into windows 8 (I'm using a USB-stick which worked fine on another computer).

I can't find a CSM or Legacy boot option anywhere!

Also, when I select my boot order, it says "UEFI:" in front of my USB.

Pictures:

Thanks in advance!

A:Disabling Secure Mode doesn't disable UEFI

If you can boot into Windows 8, what are you trying to boot on the Flash Drive? Or do you mean you cannot boot the flash drive at all? Maybe some clarification in this area.

What options are available on the fifth picture for UEFI USB Flash Drive Priorities?

On the sixth picture it mentions the CSM on the upper right.

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RELEVANCY SCORE 53.2

Never seen this message before but I can't get around it. All I did was reboot for a game and this popped up.

I've gone into bios and secure boot is greyed out.

How do I get around this?

Running win 7 64 bit with an Asus x99-A motherboard. Specs updated below

A:"Secure Boot Violation" Invalid signature detected. Check Secure Boot

What is your BIOS version? Have you flashed it?

Unfortunately as I have lack of experience with such an issue I can only refer you here:
http://answers.microsoft.com/en-us/w...b-301431436265

I am aware it says "Windows 8" but just have a read through it and get back to us.

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RELEVANCY SCORE 53.2

Never seen this message before but I can't get around it. All I did was reboot for a game and this popped up.

I've gone into bios and secure boot is greyed out.

How do I get around this?

Running win 7 64 bit with an Asus x99-A motherboard. Specs updated below

A:"Secure Boot Violation" Invalid signature detected. Check Secure Boot

What is your BIOS version? Have you flashed it?

Unfortunately as I have lack of experience with such an issue I can only refer you here:
http://answers.microsoft.com/en-us/w...b-301431436265

I am aware it says "Windows 8" but just have a read through it and get back to us.

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RELEVANCY SCORE 53.2

I posted a similar question earlier and people referred me to the Yoga (much appreciated).  However, I was interested in the 2.6 lb carbon version with touch screen capabilities.  Asus has a Spin 7 model that is very good at 2.65lb, but I miss the red mouse toggle in the middle of the keyboard and Asus's track pad was designed too large....causing unintended tapping.  The Yoga, while nice, is heavier than I was looking for.  The 14 inch screen is about 3.3lb? the 12 inch at 3? I thought that some of the earlier Thinkpad Carbons had touch screen and was hoping they would make a return soon.  Thanks,

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