Microsoft closed a Windows 7 / 8 key loophole last month, and now people are experiencing issues reactivating some Windows 10 / 11 installs. Microsoft closed a Windows 7 / 8 key loophole last month, ...
Microsoft has confirmed that Windows 7 and 8 keys can no longer activate any Windows 11 edition or version, not just Canary builds, as reported in September. However, Windows 10 keys are still valid.