My HP laptop had WIN7ULT 64BIT when buying it.But it's COA sticker states HOME PREMIUM. but i got ultimate key by using key finder software. Recently i reinstalled laptop it was activated to HOME PREMIUM with no problem. but when tried to upgrade to ultimate made hard getting error code 0xC004E003.but when i validate it seems to be genuine.copy.pl tell me how to activate my laptop to ULTIMATE....
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