Stefan Mileschin

For all of you 'can't stand to wait' early adopters out there, you may need to know how to activate your 'legitimate' leaked copy of Windows 8.1 RTM and it's much simpler than you may think. Waiting until the official release date is also an option. We can almost guarantee that rumors will circulate soon that Microsoft is blacklisting any key that is used to activate Windows 8.1 as these rumors always make their way around the Internet, but this scenario seems rather unlikely.

http://www.hardocp.com/news/2013/08/...se_your_8_key/