Recently a Friend of mine got an error on his computer when booting.
Fatal error C0000034 applying update operation 282 of 117809 (_00000…)
After some digging i found out that there was an issue with the Windows 7 SP1 Upgrade that had recently ran on his computer. After some digging i found this Microsoft Article that seemed to solve the problem.
http://support.microsoft.com/kb/975484?wa=wsignin1.0
Short Notes are:
Download This VBS and Delete the “.txt” extension and place it on a usb drive.
1. Reboot the Computer while tapping F8 to enter advanced boot options.
2. Select Repair your Computer
3. Under System Recovery Options, make a note of the Windows 7 drive letter listed on the line below Choose a recovery tool. EX: Operating system: Windows 7 on (C:)
4. Select the command prompt option
5. Navigate to the USB drive Letter (Trial and error worked for me)
6. Run this command
Cscript Script.vbs:\Windows\winsxs\pending.xml.
7. You should get an output similar to this
2 POQ nodes removed. Script Completed
8. Reboot Computer and Updates should complete Normally.
Hope this helps.
I found some additional info on this forum post.