Microsoft has been offering Windows 8 Pro users a free upgrade to the Media Centre edition of the OS, which is very kind. What's even kinder is that this key also lets pirate users fully unlock pirated versions of the code.
The flaw requires a little work to get going, but nothing five minutes of Googling (or Binging in this case) won't fix. Pirated copies of Win8 can be temporarily activated using a third-party Key Management Service request, although that expires every 180 days. Tap in the free Media Centre update key and these dodgy versions perma-unlock forever. [Reddit via The Verge]