Genuine product key not accepted for validation

[Craigjw]

I bought a genuine copy of Windows 7 64 bit, I know this for sure, 100%. It was bought from Amazon (actual amazon, not a 3rd party using amazon) and has all the correct holography.

I have been using it for a while on a different pc, however, after some hardware issues, replaced various bits of hardware and after MANY reinstalls later, I manage to get windows working properly, I finally have a pc that doesn't have any hardware faults, although now windows tells me:

The product key you entered can't be used to activate windows.

What is the meaning of this? I bought a genuine copy of windows so that this doesn't happen.

Can someone please assist.

 

[pparks1]

Probably a phone call to Microsoft to get it activated will get it sorted out for you. It's likely just the fact that it was recently put on a machine and now being moved. MS systems would see this as you installed it and gave it to a friend a week later.

 

[gregrocker]

If you wisely wiped the HD before install, or installed to a new or clean HD with an Upgrade version, then you need to do the quick registry workaround given here in order to activate: http://www.sevenforums.com/tutorials/31402-clean-install-upgrade-windows-7-version.html