Change your windows to Genuine

Download this file http://indoupload.net/files/2324/genuine.rar

first :
openkeyfinder.exe (some antivirus may detect this file as virus but it's ok ^^ )

second :
click Option -> Change windows key

third :
open xp key.txt
and then just choose one of them

last :
open Microsoft Genuine Advantage Diagnostic Tool.exe
If it said "Genuine"....congratz..you got the genuine windows
If it said "Status Invalid/BLK" then you must try it again