Home / how to unblock windows 7 product key How to unblock windows 7 product key 08/04/2021 Recently, I built a brand-new COMPUTER using my old HP harddrive, and also my essential is no longer valid, and also it displays "Windows is not genuine; Build 7601" on my wallpaper. I purchased a new crucial, however it"s been blocked. Any means to unblock my key?Fixes I"ve tried:SLMGR -rearm in cmdContacting HP/Microsoft Help.You watching: How to unblock windows 7 product key Member · 1,113 short articles 1,113 postsMr. Friendzone himselfLocation: Infinite Loop, Cupertino; Replacing all Macs with PCsPosted May 15, 20169 minutes earlier, nfg4000 said:Recently, I developed a brand-new PC making use of my old HP harddrive, and also my crucial is no longer valid, and also it screens "Windows is not genuine; Build 7601" on my wallpaper. I purchased a new vital, however it"s been blocked. Any ways to unblock my key?Fixes I"ve tried:SLMGR -rearm in cmdContacting HP/Microsoft Aid.Well what did microsoft say?Please vote for Donald Trump. I am out of sitcoms to watch.When lyfe offers you HDDs, make SSDs SpoilerMy Troll PCLink to postShare on other sites Moderator · 22,824 articles 22,824 postsTripple BannedLocation: Montreal, CanadaPosted May 15, 2016Windows OEM licenses are not transferable. So you must buy Windows and execute a clean install (when you do a little hardware readjust, always clean install your OS, also if, by possibilities it works (although Windows 8 and also more so 10, even more solid on large hardware alters, than before).See more: Bitlocker Failed To Unlock With This Recovery Key, 0X80070057 Bitlocker Failed To Unlock I don"t know where you bought your key. But Microsoft continuously blocks secrets that they have actually found to be distributed virtual, or sold illegally (in the feeling that someone is offering the very same crucial multiple times, so Windows Activation servers sees the exact same essential, provided at multiple location, all fighting for activation, as once it activate a system, the other acquire deactivated). In an absolute rare case, you are absolutely unlucky, and the product you bought, despite a genuine Windows purchased in stored, the vital has actually already been supplied, or blocked, because of crucial gens, but this is typically when you buy an old Windows.See more: Intel Cpu Core I5-2500K 3.3Ghz / Amd Cpu Phenom Ii X4 940, Intel Core I5 2500K Vs Amd Phenom Ii X4 940 The entirety essential blocked/unblocked is handled by Microsoft servers. So tright here is nopoint anyone here have the right to execute. However before, if the reason is that you have actually Windows 7 Professional, and also you got a Windows 7 Home Premium, for instance, then obviously the activation will certainly fail. You need to clean install Windows as the editions are different.