剛剛才解決你的狀況..
Window Update 有 Bug 啦.

解決方法: 英文版
http://forums.techarena.in/showthread.php?t=695591

Here's a temporary workaround. Go to Start > Run > type in

net stop wuauserv
Click OK or press Enter

Show hidden files, folders, and system files
http://www.bleepingcomputer.com/tuto...l62.html#winxp

Navigate to WINDOWS\SoftwareDistribution\DataStore
Delete the *contents* of the Logs folder and delete DataStore.edb
NOTE: Deleting the above will mean that the update history shown at
Windows|Microsoft Update will be cleared. Until updates are once again
done from either site, nothing will be listed.

Open the WINDOWS\SoftwareDistribution\Download folder and delete *all*
contents.
Close the window

Empty the Recyle Bin
Go back to Start > Run > type in

net start wuauserv
Click OK or press Enter

要中文版嗎?