I see many posts of issues with upgrades. I just wanted to share that its not all bad news with respect to 10 upgrades. I cleaned up my windows 8 install a big, removed some software I no longer used, and upgraded my 8.1 to 10 with no issues. Also like to note this is my original install of win7 from 2010 that i ungraded to windows 8, then 8.1.