I am reinstalling xp on an old dell. I don't have any cd's that came w/ the comp. I got the windows file through my university. I had to open the file in windows, and when it restarted it took me to the xp setup screen. I've deleted all the partitions, but the problem is it won't let me delete the main partition taking up all of the space on my hard drive b/c it says there's setup file on it (i'm assuming the os setup files). and there's not enough space left to create another partition. What can I do? Thanks.