Hi. I got a new laptop on Friday with Windows Vista. I installed my current version of BF AntiVirus Plus with no issues, and my serial # was accepted. Today it occurred to me that I had installed BD for XP, not BD for Vista. So I uninstalled the BD on the machine, and tried to install BF for Vista. This is when I run into problems. Even though I am logged on as the only user with Administrative Rights, using the latest build as recommended on the Forum, the software always stops installing at "Starting services", saying "vsserv failed to start" and "verify you have sufficient privileges to start system services." This now happens whether I use the Vista or XP version of BD. I tried the registry trick Niels mentioned but that makes no difference. I have searched on the Forum for "vsserv" and system privileges, but have had no luck in solving my problem. Can someone please advise? Thanks very much.