BOOTMGR is missing error booting Windows 7

March 12, 2010 at 01:00:17
Specs: Windows 7
Hello, I'm in need of some computer help. To take it all from the top: I recently bought a new harddrive, which I installed Win7 on. My old WinXP was installed on another harddrive, which was split into 2 partitions. After installing Win7 and copying all I wanted from the old XP partition, I tried deleting it, without luck. I couldn't format it either, or shrink it below the amount of space already taken by the files there, not even in safe mode or with Diskpart. Thus I booted from my Win7 cd, opened the console, ran Diskpart to format the old XP volume, which I managed to do that way. However, after doing so, I've found out that for some reason, that drive also contained my Master Boot Record, so now I'm getting the following error when my computer tries to start:

BOOTMGR is missing
Press Ctrl+Alt+Del to restart

These are the things I've tried so far:

Booting from my Win7 disk, but it can't see my install, so it can't repair it.
Used bootrec /fixmbr, and although it said it was successful, it didn't help me with my problem.
Tried running bootsect from the install disk.
Unplugged the other harddrives, which just gave me the error "no system or system disk found".
I've tried bootrec /rebuildbcd, but when I pressed "y", it just told me "element not found"

I can easily go onto the Win7 drive through the console and everything is there, so it hasn't deleted neither the drive, nor the files on it, just the Master Boot Record. I really don't want to reinstall, since I have several days of work ahead of me then (have to start over with my MCP project, installing virtual machines, configuring ad, etc.), so if anyone knows how to fix this, please help me.


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#1
March 12, 2010 at 02:47:34
Please read the following MS KB article carefully. It may contain clues as to successfully recovering your Win 7 installation.

Use Method 8 in the article and go as far as step 6. Now skip step 7 and continue with the remaining steps to repair your Win 7 installation. In step 11, you should choose to upgrade your previous installation if your Win 7 media is a retail copy.

Please note I am not absolutely sure this will work. Use the information at your own risk.

Hope this helps.

Regards

http://support.microsoft.com/kb/927...

SuatCINI


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#2
March 12, 2010 at 10:43:20
Thank you for the reply, but I found out why I couldn't get it to work. I was using a 32 bit install cd to try and repair a 64 bit installation >.<

Oh well, after obtaining a 64 bit win7 cd, I ran a repair, and managed to get it to boot.


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