Microsoft is investigating Windows activation issues that appear to be linked to the company’s recent move to block Windows 7 and Windows 8 keys from activating copies of Windows 10 and Windows 11. If you have an installation of Windows 10 / 11 that has been activated using the free upgrade from Windows 7 or 8, then there’s a chance it might become deactivated if you swap some hardware components or even upgrade your BIOS version.
I personally experienced this in late October on ...