My windows 10 (Originally 8.1 oem, upgraded to 10) PC died and I decided to make the jump to a whole new pc. New hardware all around except for my boot drive. I placed that in the new pc and it boots fine. Everything is working except now the system claims that my windows 10 is not legitimate. I've done the "Change key" method of keying in my product key on the sticker to no avail, tried to verify on windows store with no success, and am now considering downgrading back to 8.1 with hope that I'll be able to reupgrade to 10 without buying it. Is there something I can do to fix this without a reinstall? can the downgrade and upgrade work the way I think?
Thank you for your help.
Thank you for your help.