cmd >
 
wmic path softwareLicensingService get OA3xOriginalProductKey


--------------------

cmd >

slmgr /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
slmgr /skms kms8.msguides.com
slmgr /auto



- windows 10 pro key: W269N-WFGWX-YVC9B-4J6C9-T83GX