Trouble booting PC getting mountmgr.sys is corrupt
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Britec Computer Tech Help Support Forums  « Microsoft Support  « Windows 7 Support  « Trouble booting PC getting mountmgr.sys is corrupt
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Author Topic: Trouble booting PC getting mountmgr.sys is corrupt  (Read 427 times)
sunsetchaser
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« on: November 04, 2011, 02:55:36 PM »
Hi, and I am hoping someone can help me here. I opened up my Pc the other morning, to find the Window 7 startup repair screen, when I checked the diagnostics this is the one that is the problem as the others were ok

Root cause found
Boot critical file C:\windows\system32\drivers\mountmgr.sys is corrupt

Repair action: File repair
Result: Failed: Error code = 0x45d

Repair action: System files integrity check and repair
Result: Failed: Error code = 0x45d

I have tried a couple of the things on your videos on youtube, using the bootrec.exe command
and none have worked. I have booted from the Windows 7 64bit cd and ran the repair and command prompts from it, as you suggest using Rebuildbcd fixboot fixmbr, and none have worked, and searched for what I can about replacing mountmgr.sys. I have found that it can be corrupted by malware etc, but I really don`t know if that is the cause.

I do not want to do a clean install as I have photos of my newborn daughter from last month, and have not got around to backing up the data.

If the worst comes to the worst and I cannot get it to boot up, is there any way of getting the data off the pc, as when I use the windows cd repair option I can see if I press the drivers button, I can see the computer is still ok, all my files etc still there.

I really would appreciate any help, I know my way around a pc, but no way an expert, otherwise why would I be here!

Thank you
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Britec
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« Reply #1 on: November 04, 2011, 05:30:33 PM »
You might want to try and run SFC /SCANNOW to see if that fix's your issue.
if that fails your have to replace the file.
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sunsetchaser
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« Reply #2 on: November 05, 2011, 11:47:44 AM »
I wanted to know where and how I can replace the file in question? any help appreciated.
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sunsetchaser
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« Reply #3 on: November 06, 2011, 01:08:01 PM »
After running a lot of sfc /scannow, and chkdsk /r, chkdsk /f, plus lots of other helpful things on your videos, I have a system again, and thankfully my little ones photos. A big huge thank you for your videos, I really appreciate what you have done, helping me and others like me.
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Britec
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« Reply #4 on: November 07, 2011, 04:11:34 AM »
Sorry for late reply, not been very well lately. But glad your all sorted and your PC is back up and running.
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JohnEric
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« Reply #5 on: November 13, 2011, 03:26:21 AM »
From Microsoft help
Most corrupted files can't be repaired and you should delete or replace them. However, you can occasionally use a program to repair a corrupted file (or at least salvage some of the data within the file). Some programs of this type are available on the web.

If the file is a system or program file, you can check your hard disk for errors. If any bad files are reported, Windows might be able to repair them.

Try visiting this site for more tips http://www.techyv.com/questions/what-should-be-done-if-corrupted-file-cannot-be-restored
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