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Download jellybean keyfinder from this website download
Now open keyfinder.exeClick on options and click "change windows key"Now enter this key and you're done.
*****************************V2C47-MK7JD-3R89F-D2KXW-VPK3J *****************************P.S: this works on windows xp sp2 only...... ppl u can try this out...this might sound silly but it works perfectly...
TRY INSTALLING IE7 OR MEDIA PLAYER11.