I have a Dell 1520 Inspiron Laptop, but this is very much a windows related question so I decided to put it here. Last time I reinstalled windows XP was about 3 weeks ago. For some reason the reinstall named my main drive D, and my vista partition C. I was attempting to fix this. Meaning attempting to switch the drive letters. I used these directions from this site petri.co.il/change_system_drive_letter_in_windows_xp.htm I followed them exactly and when I restarted my computer, I got to the windows xp login screen but it just stayed there. With no option to pick a user or enter a password. At this point I realized that renaming the drive letters must have messed things up so I reluctantly took out my Windows XP SP2 boot disk and I was about to do a boot up from it. But before it loaded the setup the following appeared "Setup did not find any hard disk drives installed in your computer." Now I don't know a lot about computers, but what it sounds like to me is that in the renaming of these 2 partitions they somehow either both got renamed to the same thing or something else that the Windows XP setup just can't detect? My Dell warranty is long past gone, so I'm open to any suggestions. Please, please offer some advice. Thank you in advance.