- Run Command Prompt app as administrator
- Type: "slmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX"
- Type this: "slmgr /skms kms8.msguides.com"
- then type this: “slmgr /ato”
If you see the error 0x80070005, it means the server is busy Please try again until you succeed.
Ref - https://gist.github.com/kimgiftww/6d6242e35ef6e3baa3a6e4fb8f386d0b