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I have a vista x64 box that is no longer able to apply updates from microsoft. When I dig in looking for the problem I find this in the event log "could not be installed because of an error: 2147956498 "The component store has been corrupted."" I cannot get system restore to go back far enough to escape the problem.

Can you think of a way to fix this machine, or do I have to do a complete wipe and rebuild?

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2 Answers

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Microsoft provide a tool to repair a corrupted component store:

http://support.microsoft.com/?kbid=947821

More techy details here:

http://kurtsh.spaces.live.com/Blog/cns!DA410C7F7E038D!2798.entry

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This appears to be the answer. But, the suggested utility failed on first run complaining that I needed to update some other windows installer component. When I eventually get it running, I'll accept the answer. But fixing this box is always about #17 on my todo list. – rschuler Jul 13 '09 at 14:43
Good luck, and keep us posted. – Martin Jul 14 '09 at 9:07
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While it sounded promising the tool suggested by Martin did not work. (It refused to install). More research lead to knowledge base article 946414 which has a link to a windows update FixIt tool. The FixIt tool when run with the most aggressive(not recommended) setting fixed the problem.

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