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Windows 7: BSOD at startup - win32k.sys, PAGE_FAULT_IN_NONPAGED_AREA

17 Aug 2014   #11

Windows 7 Home Preimum 64-bit

I just came upon this same problem today (Windows 7 Home Premium, 64-bit), when taking my computer out of sleep mode I received the BSOD error (see attached). Restarting will show the same screen, and any attempts at booting in Safe Mode have failed, including Safe Mode with Command Prompt.

I've tried running diagnostic tests (hitting F12 as start up), but these tests haven't found any issues (see attached). I have the Windows 7 Reinitialization disk that came with my Dell, but that doesn't seem to be working when rebooting. I've tried the Shift + F10 as suggested during the start up but haven't had any luck getting the Command Prompt screen to enter. Does anyone know what might give?

I'm not the best with this stuff but I feel like the instructions to solve this problem have been laid out pretty clearly in this thread and I'm getting rather frustrated with myself for not being able to do it myself!

My System SpecsSystem Spec
17 Aug 2014   #12

Windows 7 Pro-x64

@BBG Only:
Download the Official Windows 7 Home Premium-x64 SP1 ISO from here:
Windows 7 Direct Download Links, Official Disk Images from Digital River

The English version is about half way down the page. There are many language versions listed in columns so be sure to select the correct one. They are large--Almost 4GB. But it will give you a full version that you can also use, with your key, to do a Clean Reinstall should you ever need/want to.

Place a blank DVD in your DVD writer. Right click the downloaded ISO file and click on Burn disc image. This will create a Windows bootable disc you can use in the previous mentioned procedure as well as having an official full copy of your Windows version.
My System SpecsSystem Spec
17 Aug 2014   #13

Windows 7 Home Preimum 64-bit


You are a man of great knowledge. Thank you for your quick and helpful assistance with this issue. Removing that one file did the trick.

Thanks again!
My System SpecsSystem Spec

17 Aug 2014   #14

Windows 7 Pro-x64

Well, I don't know about that but thanks. Knowledge is wasted unless it's shared and the guys and gals on this forum wouldn't be here unless they enjoyed sharing and exchanging what they have learned. I just passed along what I learned during the early hours of the problem.
My System SpecsSystem Spec
18 Aug 2014   #15

Windows 7 Prof x64

I read lots of wornings about repair install and who would like to do clean install just to loose all dayta?

The Linux way
Recover data from a corrupt Windows drive with Linux

The Ubuntu system can read all on the Windows unbootable HDD
This give you possibility to to anything with all files on your HDD including eraising Widow flies. (in this case at least, when the error is applied to othervise healthy HDD).

I find it is much easier than coping with Windows ISO file
My System SpecsSystem Spec
18 Aug 2014   #16

Windows 7 Pro-x64

Don't put words in my mouth.

You don't need to do a repair install or a clean install to fix this problem. You don't need Linux nor do you have to download anything. You START the recovery by inserting a Windows disc just to get to the first screen. This allows you to do the shift+F10 to enter a menu that then allows you to choose a command prompt. That command prompt is all that needed to delete the corrupt file. Once the file is deleted, the disc can be removed and PC can be booted as normal.

The suggestion was made to download Windows ISO simply to create a bootable DVD/CD since the respondent said his didn't work and having the ISO could save time ordering one from the OEM. In addition, it gives a PC owner the OPTION to do a clean install, at a later date, should the owner want to rid his system of OEM crapware. You can't do that with Linux or Ubuntu and still keep Windows.

No download of any kind is necessary if you already have a Windows repair disc.
My System SpecsSystem Spec
18 Aug 2014   #17

Windows 7 Prof x64

I can not argue with you carwiz, you are the expert. I am just an ordinary user. This experience with unbootable system happened to me first time during my 20 years of using computers. Windows recovery environment looked to me very bizarre, dark and unfriendly. Entering command prompt is like entering black tunnel or trying to navigate inside broken sinking submarine.
The thing which Linux did for me it was, first of all, possibility to copy whole content of the unbootable HDD to an external disk. It was like looking at the thing from outside, illuminated, active and intuitive.
This may be an interesting additional option to recues things before going for actual restoration of Windows.
Luckily enough the error was curable thanks to MS advice, but think about those poor people who get BSOD due to all other possible reasons and do not even have backups...
I am just reading that there are some sophisticated data recovery programs *professional which give you possibility to copy content of unbootable HD to external disc location before attempting repairs. Think about it. Have a look at ShedowProtect Desktop 5.0 I will get myself a decent backup tools now. Maybe I will not need them during next 20 years / I hope so / but this BSOD made me scared taking into consideration content of my HD...
My System SpecsSystem Spec
19 Aug 2014   #18

Win 7 Home Prem 64 bit

UPDATE: I feel stupid. I realize I had the wrong drive letter in the command line that I was deleting to. I used this line of code to see how many drives I had:
'wmic logicaldisk get name' (no quotes)

and then just like the microsoft tutorial said, i went drive by drive and using DIR to see whats in it.
GREAT GUIDE: Microsoft's Answers Page

Thanks everyone
Firstly, I hate this patch, and thanks to everyone who is helping anyone out.

I came here because I also am having the exact same issues as all of you.
I CANNOT boot into Safemode, I get BSOD (networking or cmd safemode)
nor can I boot into my machine.

In my case, I boot from CD, go to command prompt, and cd to that location to delete the file. I delete it and can confirm that the FNTCACHE.DAT file is deleted because if i run the code again, it says it could not find it.

I then follow the instructions to reboot and take the disc out, but I still get the BSOD (same error) upon normal boot (and safe mode boot, tried it twice).

Every time i go in and delete that file, because it keeps getting recreated, but after each time, I see the Starting Windows Flag form, i see a black screen with my mouse, and then about 2 seconds after, it BSOD same error. Attached is the error:

Thanks in advanced for ANY replies
My System SpecsSystem Spec
19 Aug 2014   #19

Windows 7 Prof x64

Have you followed all instructions about removing bad MS updates after havein removed the .dat file?
My System SpecsSystem Spec
19 Aug 2014   #20

Windows 7 Ultimate x64
Thanks a lot!

Thanks a lot for the info, carwiz - I wasted a lot of time on this and was getting ready to move to more drastic measures.
My System SpecsSystem Spec

 BSOD at startup - win32k.sys, PAGE_FAULT_IN_NONPAGED_AREA

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