Tried the whole evening yesterday to install XP on a third partition and failed. Problem is after the file copy the install routine on the XP parition won't boot. I tried a few things but it doesn't work. Before anyone says. Why would you do that?? Well because I want to go to a little lan party and the games we play there often don't work in Win7x64 for some reason. By installing a small gaming only XP partition I am hoping to solve all the compatibility problems. Parallels would probably create more problems than it solves. I have OSX on the first (visible) partition as always and had Win7x64 on the second. Now I put a third partition in between the too on which I want WinXP. It messed up the Win7 booting but I could repair that. Everything boots only WinXP gets stuck on a black screen with one blinking cursor. It is doing nothin. I didn't use the bootcamp assitant as it is utterly useless. It wants to restore to one partition and make a new one. With rEFIt I can boot in theory anything but I don't seem to understand the theory because in my opinion that problem shouldn't be a problem. I slipstreamed a WinXP SP3 CD which boots fine but the install works as well as with the original SP1 cd, i.e. it doesn't. I really don't understand how efi works and what I need to do to make it work. My only left solution is to install XP on the same partition as Win7, but that can mess up a lot and might not solve anything. Also I'd have to free up space as that partition is pretty cramped. I could also use a Win7 32bit but I have no license for it lying around anymore. Anybody tried this before and has some tips. I cannot find anything over google. It is usually people who have some bootcamp troubles by only adding a third data partition.