You can even leave away the '.vbs' . slmgr -ilc slmgr -ipk slmgr -whateverparam Always worked for me...
Sorry to bump up this old thead. Can someone tell me, after manually installing the slic 2.1 cert using slmgr -ilc from C:/ ,can I delete it the xrm-ms file cert from C drive once activation is successful? Or does the cert always need to be there? Also if I reinstall windows 7 again, do I need to manually install the cert again to activate it? Please pardon my noob questions as this is my first time Thanks very much.