I have just completed my first exchange 2003 and I think I might have missed a trick. I remember during the 5.5 install it ran an optimizer recommending which drive to use for program files, IS and logs. There doesn't seem to be an equivalent in 2003 and so I now have all my exchange files on my C: drive which is only 12Gb, but I have another 20Gb partition and 2 separate 36Gb drives. Can I move the location of the install or do I need to uninstall and start again. The new server is the second one in the domain - I ran out of disk space on the first one and I need to migrate mailboxes across.