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Sony VGNSR26mn Win 10 NX bit detection error
#1
Hi All.

I've an issue with a Sony VGNSR26MN (AMI aptio BIOS) where trying to install windows 10 returns the NX bit not supported error. The system currently runs win 7 and using coreinfo the system says DEP is supported and running and looking into the BIOS using AMIBCP4.53 the default value is on. I've read some reports on the net, especially concerning some dell model that there is an issue with certain bioses that incorrectly report (or w10 incorrectly detects) that the NX bit is switched on in the bios and that turning off the NX bit allows W10 to install.


[Image: desktop8.jpg]

I've modified the BIOS to have the required menus as user (and so they are visible in the bios) so I can test the theory that there is a bios programming error in reporting the correct value to W10's readiness detection routine and flipping the values will correct it. However when trying to flash the bios using AMI's flashing utility from windows an ID mismatch error is reported and so won't continue with the flashing.

I suspect I'm using the wrong flashing procedure as I need to bypass the ID checks, can anyone point me in the direction of doing it right ?

Secondly has anyone else run into this issue with the W10 readiness detection ?

NB downloaded and extracted vanilla sony bios attached

Thanks MrBen

Edit:

See this link for further info about NX bit reporting error in BIOS

http://answers.microsoft.com/en-us/windo...582?page=6


Attached Files
.zip   R1130Y1.ROM.zip (Size: 925.22 KB / Downloads: 0)
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quote
#2
Hi All

Finally nailed it and it a windows 10 detection routine bug and not to do with the bios. This was 32bit win 7 pro

Needs DEP to be always on for some silly reason.

Ran bcdedit.exe /set {default} nx AlwaysOn and worked.

Thanks if anyone looked at this.

Mods please can you mark this solved.

Cheers MrBen
find
quote
#3
Have You looked these too :

https://www.infopackets.com/news/9619/ho...s-10-error

http://answers.microsoft.com/en-us/windo...0d2?auth=1

"The final solution was to *Disable* NX support in the BIOS.
Dont ask me why it works though.
But judging from comments below, it has worked for a few others too"

"I had the same issue, and couldnt find anything in the BIOS to enable the NX bit.
After lots of research, found I could by using BCDEDIT to turn on NX - it worked!
Brief guide:

Start CMD prompt as Administrator
BCDEDIT enter
shows you the current entries

to enable the NX bit always (which is what I did to pass the Windows 10 update check)

bcdedit /set nx alwayson

You'll get a "Command completed successfully" - then REBOOT and
try to run your update - you can force an immediate update by downloading
and running the MediaCreationTool.exe from https://www.microsoft.com/en-us/software.../windows10 "

Regards

[size=undefined]Your Brain [/size]. . . . It's the best tool U can use ! Wink
[size=undefined]Don't FLASH the Bios Mod if You get a Size Alert, You risk a Brick !!! [/size]
Donate to me for my work, click here BDM
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quote


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