I guess it depends on when the installation is defined as completed, but mine took about 25-30 minutes from the point of choosing the DVD as boot-up to a usable desktop (i.e. after the initial system benchmark is performed). And if I remember correctly, it automatically installed all drivers too. Can't really comment on the number of reboots, but it was at least two.I have it installed on the Dell XPS M1330 laptop with a 320GB 5400rpm hard drive.
1/13/09 at 2:11am