How to fix error 0xC0EA000A
About error 0xC0EA000A
The error indicates the presence of old keys or unknown KMS connections. Fix as follows:
-
Start PowerShell as administrator.
-
Run the command to install the correct key (replace with your key):
slmgr -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
-
Run the command to activate through official Microsoft servers:
slmgr -ato
-
Restart the computer. Activation will be complete.