changed PC hardware, can't activate windows

[Windows Central Question]

Previously, upgraded from win 7 to win 10 automatically.
ran pc for over a year, changed my motherboard and CPU, now windows is asking to activate windows, does not find previous build.

 

[davidhk129]

Previously, upgraded from win 7 to win 10 automatically.
ran pc for over a year, changed my motherboard and CPU, now windows is asking to activate windows, does not find previous build.

Please read this Microsoft article :

https://support.microsoft.com/en-us/help/20530/windows-10-reactivating-after-hardware-change

excerpt:
In Windows 10 (Version 1607 or later), you can link your Microsoft account to the Windows 10 digital license on your device. This can help you reactivate Windows using the Activation troubleshooter if you make a significant hardware change later, such as replacing the motherboard.

 

[eastlawyers1]

Have you ever backup your windows10 system? and have you migrate the OS to another hardware?
you changed your motherboard and CPU the system sometimes may regard as a new computer.
You can try EaseUS to do backup and backup you system, so that the System can always know the computer and keep activated.