Eric, Nope, I "inital" installed XP Pro over the pre-installed version of XP home, completely re-partitioned the drive at that point too, added the 20Gb drive later. Thinking about it, I have Nero installed too, for the CD-RW. I think what I'm going to do tonight, is experiment with the crack on my laptop, I don't need to worry about not being able to to re-auth, and I can always re-install, reformat later. But my laptop was a vanilla install using the same XP Pro CD, but then I patched it with XP SP1 without a hitch. The machine's a PIII 700 with 512Mb so it just makes the recommended spec. I'll let you all know what happens... I should mention at this point that I did buy P5, (from egi.sys) and I have a valid registration code from CL, etc. But I'm interested to see what happens. I'm going to back up my data area to my USB external first though, just in case. And no, I'm not going to tell you where or how to find the crack... Buy your own copy! later jb