Thinkpad W510: Win7x64 w XP Downgrade Lic. Which OEM XP down/install? Have Dell XPsp3 Thinkpad W510: Win7x64 w XP Downgrade Lic. Which OEM XP down/install? Have Dell XPsp3 Which would default work well as an OEM licensed Win XP Pro for this machine? I downloaded from the torrents on tpb an Dell OEM XP SP3. It installed on an old T43 but I had to do online activation for it. Is there a better download or a way to extract / modify this or other (have some other HP/Dell OEM XP Sp1 / Sp2 CDs) CDs for install on this Lenovo Thinkpad W510 - WITHOUT NEEDING ONLINE ACTIVATION... Pre-activated preferably? I have a license but not the relevant media as Lenovo stopped providing them.