[Solved] Unable to activate Windows, error 0xc0ea000a

When you are trying to activate Windows 11 , you might get this error:

Unable to activate Windows
It looks like the hardware on this device has changed. Make sure you’re connected to the Internet and try again later. (0xc0ea000a)

Here is instruction how to solve the the error 0xc0ea000a

1. Open Powershell /command prompt as administrator

2. Enter the following commands one by one

slmgr -ipk <Your product key here>

slmgr -ato

For example:

slmgr -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX

slmgr -ato

If you get any other error codes , please reboot your PC, then  Select Start > Settings > Update & Security > Activation. then select” change product key”, and input your Windows 11 key