At college, it vastly depends on the type of computer you use - however, since all of the older are getting replaced by the new ones, they boot up in about 2:30 minutes, including logon to network. The older ones took around 12 minutes - but they were there when we ran NT4 about 4 years ago rather than 2000. Specs of the new ones are Pentium D with 512mb RAM. Older ones are Celeron (orig!) with 32/64mb ram depending on PC. Theres about 2500 user's over all the networks (With 4 or 5 different domains - student, teaching, admin etc). Desktops use 2000 along with students laptops, Teachers laptops use XP. Over the summer, all PCs are switching from 2000 to XP so will be able to update the times in September