Quote Originally Posted by harrison
Oh and I didn't have to buy an official 10 pro licence for any of them. I had an 8.1 licence so upgraded that on a clean install for my main gaming rig. For the others I just had pirated windows 7 ultimate installed on them made genuine via windows toolkit. These all upgraded perfectly ok to 10 pro and therfore are now all official licences. I don't quite get the upgrade trouble you've been having.
The trouble was I only had an OEM license for Windows 7 Pro for my old computer. I could upgrade to Windows 10 Pro on that, no problem. However I could not use that license to activate Windows 10 Pro on the new computer, neither would the old OEM Windows 7 have activated on it, just as it shouldn't. So I was happily surprised when the Windows Activation Helpline guy produced a new license key for me as I didn't expect them to approve an old OEM license for a new computer. And then they did.