slmgr script fonction

slmgr -dli (this will display the current activation/licensing info of the pc your on)

slmgr -ipk xxxx-xxxx-xxxx-xxxx (allows you to replace the current product key with the specified)

slmgr -xpr (shows expiration date of current license)

slmgr -upk (uninstalls current product key and i would assume puts license back to trial state)

slmgr -ato (activates current pc’s license)

slmgr -skms activationservername
or
slmgr -skms port
or
slmgr -skms activationservername:port (sets KMS server used for activation and/or port, ie slmgr -skms 192.168.10.1:8090 or slmgr -skms KMSServer:8090)

slmgr -rearm (resets the licensing status of the machine)

slmgr -ckms (clears the name of KMS server used to default and port to default)