As writes Microsoft confirms problems with Windows activation after blocking old keys / Neowin Neowin, referring to several reports of victims, users began to lose Windows activation after updating the BIOS or installing new components in the PC. The worst part is that the key from the old system linked to the Microsoft account is no longer suitable for activating Windows 10 or 11. As a result, the affected users have three options: use an inactive system with restrictions, buy a new license, or resort to illegal methods.
Microsoft has confirmed that updating the BIOS or hardware should not deprive users of a license. A technical support employee informed one of the users that this should not have happened, but he could not do anything because the keys to Windows 7 could no longer be used to activate Windows 10.
Bill Babonas, Chief Product Manager at Windows, gave Microsoft investigating Windows activation issues after closing a key loophole / The Verge this is The Verge's comment: "Microsoft is aware of these customer messages and is investigating. Customers who are experiencing technical difficulties should contact customer support."
The time frame for fixing this problem has not yet been announced: affected users can only wait.