Hi guys, So, a couple of months ago I installed a Windows 7 Enterprise 64-bit version at someone's place. Now he called me that his Windows needed to be activated again, so I did that, but he actually wants to buy a license now, but I can't find a website where you can buy a Enterprise license. So apparently there's a tool called Windows 7 Downgrade, where you can downgrade to an other Windows 7 version, but my question is...if I downgrade, and I enter a valid, legit Windows 7 Home Premium key, does that work? Or is there an easier option without a clean install? Thanks in advance.