Microsoft has confirmed that users can no longer use old Windows 7, 8, and 8.1 keys to activate Windows 11 ... to The Verge that old Windows 7 and 8/8.1 keys are now "fully blocked" from ...

Activate Windows now Running a non-genuine copy of Windows can put you at greater risk from viruses and other security threats. Go to the Store to buy genuine Windows or enter a product key.