I have 8.1 pro vl running on my pc so nicely that I am offered free upgrade.Going through the forum, I understand it is quite safe to upgrade, and I have to skip when asked for key. I don't have a key. My confusion is, if something happens during or after upgrade, can I just format and reinstall 8.1 with autokms? or will I be flagged down because my hardware details are in the server? Also how do I go about activating the free upgrade? If everything goes smoothly, later on can I clean install Enterpise edition from Paul's X files? I have MTK 2.5.3 and 2.6 Beta. Or should I be happy with whatever I get as upgrade? Thank You.