The easiest way to do this is with the following command:<br /><strong>Vista:<br /></strong><strong>slmgr.vbs &ndash;skms </strong> _servers_FQDN <strong>Windows 7:<br />slmgr.vbs /skms </strong> _servers_FQDN Note 1: You should run this with elevated administrator permissions.

Note 2: This does not actually activate the computer. Activation will happen within about 2 hours automatically, or you can run the following command:<br /><strong>Vista:<br />slmgr.vbs &ndash;ato</strong>

Windows 7:<br />slmgr.vbs /ato

– Main.FredPettis - 2010-08-14