Windows 7 Error 0x80072f8f in windows 7

[Shashwat]

I upgraded from windows 7 to windows 10 after formatting the computer I installed windows 7 again but when I type the activation key it is showing error code 0x80072f8f . The activation key which I have is genuine

 

[Neemobeer]

That would be due to the fact that Microsoft shutdown the activation services for Windows 7 since it's been end of life since 01/2020.