I tried microsoft through the listed method and again got nothing but the run around. I then tried the number listed above by stranglehold and it worked great. thanks I never would have got through without it. they agreed to validate win vista but unfortunately my compaq 3000 laptop couldn't run vista. There were no sound and video drivers that applied to vista. I did ask about reusing win 7. it's ok to reuse a purchased copy but in only one couputer at a time. No one could give me a reason why they wouldnt let me reuse vista for 2 years. it was a legal purchased copy. Long story short, I loaded the presario with ubuntu 11.1 and it works great, had all the drivers.