Does anyone know if it is possible to upgrade a genuine vista installation to windows 7, and then activate it using the various methods found here? I've got an HP desktop which I've successfully modded the BIOS on, and a Fujitsu laptop which I haven't modded as of yet, both of which have genuine copies of vista home premium. Would it be possible to activate the HP via SLIC+Cert and the Fujitsu via a loader? If anyone's had any experiences activating upgrades, let me know! Ad.