Hello
A recent update check has resulted in Windows 10 telling me I must renew my License key. I believe what has happened is the updater saw my College email as the email to use. This has resulted in an unintentional upgrade to Pro/Enterprise. I bought this machine used, and it had been factory reset using the resident files/utilities used for that purpose.
So, how can I repair this? I downloaded a key finder and re-tried to insert that key in the appropriate place, the reply I receive from Windows says that I need to approach my company's update server to use that key. If the goof cant be reversed then I'll convert over to Ubuntu/Linux

Thanks all