All in all I can have a Windows machine up and running in about a day and an XP machine in 2 day. A Linux machine normally in about 30 min's to an Hour depending on how many updates there are. Hope this helps.
But Bill, I'm computer dumb and can fix my XP machine in 2 or 3 minutes........... I slap in another hard drive with an Acronis made "exact copy" done on it. Just got 2 replacement hard drives for my decal computer & made hard drive copies. These copies also have my farm dairy programs on it, so they work in the computer in the milk parlor as well.