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WDFLDR.SYS is corrupted or missing


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MikeDanDave75 MikeDanDave75 is offline
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16-May-2009, 09:40 PM #1
WDFLDR.SYS is corrupted or missing
Hello,

I am Jason and i recently encountered a problem on my vista home premium machine (I'm running home premium, 2 gb ram, pentium 4, and 6800gt video card/audigy 2 zs sound card) in which i get an error message at boot with these details:


Error code: 0xc0000221

File: WDFLDR.SYS

Windows has failed to start because a required system file is corrupted, or missing.


No new hardware changes were made, no software installed, just randomly, it happened. I did use Auslogics Registry defrag/cleaner and CCleaner shortly before this happened, but i don't think that would cause a problem. I have googled it but other threads about it were not useful. I guess that the problem is not widespread enough for many people to have gotten it and reported it.

- I can't get into Vista in normal or safe mode with any of the options in the boot menu.
- I CAN access my files on the vista hard drive through another operating system (XP) on my computer.
- I tried replacing the file from another vista machine, but it says i do not have permission to edit the file.
- I can't use System Restore from the vista cd because it says i have no restore points.
- I tried using the Repair Computer feature in the vista cd but that has failed every time.
- I can't run SFC/ scannow from the cd because it says "Windows Resource Protection could not perform the request operation."


Thank you so much!!

Last edited by MikeDanDave75; 16-May-2009 at 10:04 PM.. Reason: clarity
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17-May-2009, 12:38 PM #2
Bumping for a quicker response
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18-May-2009, 06:41 AM #3
Bumping for response.
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18-May-2009, 03:13 PM #4
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18-May-2009, 07:27 PM #5
Hi joeten,

I have tried that many times and the Vista CD repair feature is completely unable to fix anything. System restore does not cure the problem.

I am thinking that a registry cleaner program i used might have corrupted something...
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18-May-2009, 07:31 PM #6
hi so if nothing works from there then reinstall seems the most likely way to resolve this if you have files you need you can use a linux distro like ubuntu live cd mode to transfer them to a usb device
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18-May-2009, 07:37 PM #7
I have all of my files on a hard drive backed up, so that is not the problem. I just have a lot of program settings installed that will take a long time to redo, and am trying to avoid having to reinstall if possible!
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18-May-2009, 07:39 PM #8
hi have you reset the boot order to boot from cd/dvd and retry repair
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18-May-2009, 07:41 PM #9
Yeah. I have tried to repair from the Vista CD so many times, each with failure. System restore doesn't work and the repair can't fix the broken file.
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18-May-2009, 07:45 PM #10
what about taking a dig around the disc and locate the file and see if you can add it manually
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18-May-2009, 07:54 PM #11
I am going to try that now... however, my XP install won't let me access/modify the files and i have no way of enabling my Vista admin privileges through XP.
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18-May-2009, 07:59 PM #12
hmm not got anything to suggest at this point. just curious did you have sp1 installed on vista
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18-May-2009, 08:04 PM #13
Yes, I did.
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18-May-2009, 08:13 PM #14
hi i think that may be the problem iam not 100% on this proceedure but in the recovery console i believe you need to choose repair install if need be look for threads by rollin rog i know he has posted info on this before
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18-May-2009, 09:09 PM #15
hi forget that last bit it is not repair install it is the upgrade install you need to choose to get past sp1 http://www.vistax64.com/tutorials/88...all-vista.html please read down the page this is the best option i can find sorry about the mix up
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