slmgr

• Software Licensing Manager
• Get the Product Key Channel
• RETAIL: the most flexible type of key. Possible to be transferred to another machine
• OEM_DM: purchased by manufacturers. Tied to the hardware/motherboard
• VOLUME_MAK
• VOLUME_KMSCLIENT: kms activators

# basic licensing information
slmgr /dli

# how long the activation is valid for
slmgr /xpr

vbs

# get the key type
slmgr.vbs /dlv

# deactivate the license key on the machine
slmgr.vbs /upk

# remove key from the registry
slmgr.vbs /cpky

# activate key (on a new machine)
slmgr.vbs /ipk "product-key"