Error 0xC0000034 during Service Pack 1 installations for Windows 7 (KB975484)

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If you get this error you can try to fix this with 2 different options

Method 1: Restore your computer to an earlier point in time by using System Restore

or

Method 2: Delete the poqexec entry from the SetupExecute value (advanced users only)

Read more about how to do both of these at the official support KB article (975484)

“Your computer may freeze or restart to a black screen that has a "0xc0000034" error message after you install Windows 7 Service Pack 1 or a Windows Vista service pack”

Rob

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