http://www.mydigitallife.net/buy-windows-8-pro-for-39-99-or-14-99-with-windows-8-upgrade-assistant/ This one. If so how? Since this was not tied to hardware.. I tried to run it via VM. Windows 8 - 14.99 License Product key Never used before - Until last night before end of Free Win 10 DE. Used on Win 8 VM in Hyper V - created from the Win 8 ISO that was downloaded while buying the 14.99 Product Key. It wouldnt accept via Control Panel so used SLMGR to enter they key. So? How can/ should I proceed? I'd like for the Win 10 DE to be TIED to this Product Key and not the underlying HW/ OEM firmware/ HWID. How? I had done this but it did not work.. I will try it again .. but please tell me WHICH Windowns to try it with? Please point specific OS release to use in each of the following steps: Source: Win 8 in VM - release? currently using the ISO from that download - Should this be upped to 8.1 for better chance? Use a different Source OS? Than add (In what order?) : + Accessibility Features? + GatherOSState.exe = Genuine Ticket Destination: Win 10 in VM - Which release? Or try to upgrade actual VM with ISO/DVD in Hyper V - Which release? I've done some 20 or so machines in few nights using GatherOSState .. some failed and most got done.. so please tell me the steps without missing a step/ specifics.. Thanks. PS: Can a mod please remove all the off topic posts.. Please.