# slmgr.vbs > Install, activate, and manage Windows licenses. > This command may override, deactivate, and/or remove your current Windows license. Please proceed with caution. > More information: . - [d]isplay the current Windows [l]icense [i]nformation: `slmgr.vbs /dli` - [d]isplay the ins[t]allation [i]D for the current device. Useful for offline license activation: `slmgr.vbs /dti` - Display the current license's e[xp]i[r]ation date and time: `slmgr.vbs /xpr` - [i]nstall a new Windows license [p]roduct [k]ey. Requires Administrator privileges and will override the existing license: `slmgr.vbs /ipk {{product_key}}` - [a]c[t]ivate the Windows product license [o]nline. Requires Administrator privileges to do so: `slmgr.vbs /ato` - [a]c[t]ivate the Windows [p]roduct license offline. Requires Administrator privileges and an Confirmation ID provided by Microsoft Product Activation Center: `slmgr.vbs /atp {{confirmation_id}}` - [c]lear the current license's [p]roduct [k]e[y] from the Windows Registry. This will not deactivate or uninstall the current license, but prevents the key from being stolen by malicious programs in the future: `slmgr.vbs /cpky` - [u]ninstall the current license (by its [p]roduct [k]ey): `slmgr.vbs /upk`