the best way in this case is

来源: sanju 2015-06-09 23:09:29 [] [博客] [旧帖] [给我悄悄话] 本文已被阅读: 次 (444 bytes)
do a full backup for your whole computer at a point when it works perfectly..remember where your data is located..in case your computer is infected by virus or other malwares, copy your data, do a restore from the backup, and copy back your data...

a lot of backup software online like norton ghost...

however, why you stick on xp that is really old...actually any machine running xp can run w7 easily...:)
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