Posted March 25, 201410 yr I currently just built a PC and have to activate a Windows 7 Professional Key with-in 30 days. I tried the key I had but Microsoft said the key doesn't work so I have a key for Windows 8 now and don't know how to upgrade to Windows 8 from having 7 days left on my Windows 7. I don't know if it is possible but any help will do. Thank You. Continue reading...
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