M6400 dual boot help please

Strange, on my main workstation (not the laptop) I have multiple installs of XP Pro. Both XP installs think their drive is the C: drive and see the other drive as H:. (Lots of drives on this thing.)

In my case I had one system installed in a previous computer, then decided to migrate it entirely to the new one. So I had two XP drives that had been installed independently, and when I migrated the second XP install I modified boot.ini to add the second drive as an option.

Maybe it's because I installed in that way, or maybe Vista does something different with drive letters...

Maybe you can deny your Vista user write permissions to your XP program files folder? In XP that permission entry would just appear as a huge string of numbers and letters in curly braces, but in Vista it would recognize that as your user and keep you from accidentally installing over your XP stuff from Vista.

 

Well that's exactly what i was saying...both installs think theirs is the C: drive which is good, they will only ever install to their own drive.