Microsoft Confirms Windows 10 and 11 Activation Issues, Says It Is Investigating

Microsoft is investigating Windows 10 and 11 activation issues that are causing problems for users who have upgraded from older versions of the operating system.

Windows 10/11 Diagnostics and Logs - Matrix42 Self-Service Help Center

Microsoft investigates Windows 10, 11 Activation issues with old Windows 7, 8, 8.1 Keys

Can't activate Windows 11 Home with digital license purchased through - Microsoft Community

Windows 10 Help Forums

Microsoft confirms false This PC can't run Windows 11 error

Microsoft investigating Windows activation issues after closing a key loophole - The Verge

My windows unauthenticated somehow : r/Windows11

Windows XP - Wikipedia

Microsoft confirms Windows 11 24H2 update is coming later this year

Microsoft is looking into Windows activation issues after closing a long-standing loophole

Windows 10/11 Diagnostics and Logs - Matrix42 Self-Service Help Center

Windows 10 activation bug baffles, angers users

Windows 11 Home activation error code: 0xC004F215 - Microsoft Community