If you have an old retail (non-OEM) copy of Windows 7, 8, or 10 that you aren't using on any other PCs, you can probably use the product key to install Windows without a hitch on your new computer. genuine reddit windows keys However, you must first check to see that it has been completely disabled on the old PC it came from
. For more information on how to locate and circumvent your key, see our post on how to transfer a Windows 10 or 11 licence to a new PC.