Actually, I have two separate and distinct HDs, NO partitions. Dell Inspiron 1721 comes with two HD ports. That said, I went ahead and deleted the extra little drive that held the Dell original recovery install that came with the OEM VISTA install when I bought XP to "down/UP-grade" to XP over Vista.
Then, I purchased from Dell an extra HD and installed it and purchased Windows 7 and installed on the new, 7200RPM HD.
This is the first hycup I have ever had with XP. I booted into XP to work on Bong/McGuire missions while on leave in Florida. It hung up on my log in and I had to reboot. When I did so, it corrupted my system32\config\system folder.
Windows7 still works like a charm and I can still get to all of my files on the XP drive, except the corrupted folder.
I will move everything of importance to the Win7 or Seagate backup drive and then try to repair the XP install. If that doesn't work, I will reinstall XP from original DVD when I get home next week.
Oh, and this laptop has not been under warranty for a couple of years now.
Hopefully the repair will work. I will have to call M$ to request another code for my Office 2007 suite to reinstall it.