I didn't have too much intention to switch from Windows 7 to Windows 8 anyway, and this just SEALED the deal. I was talking to Microsoft tech support, and you HAVE to upgrade from 7 (Or Vista or XP). The ONLY way to wipe your hard drive and install a CLEAN version of 8 is to buy the System Builder's version. However, this is only good for a ONE TIME activation. So if you format your hard drive again (Or your hard drive crashes, or you swap hard drives), you have to buy Windows 8 System Builder's version AGAIN.