I have a second hard drive that seems to have a bad sector. In one of my folders on it, when I scroll down, the computer gets a blue screen with a page fault error, I think it says something about a non paged area. I added some things to that folder and now I can't get in it at all without that happening. When I try to scan it, when it gets to that part it freezes. When it was the main drive in another computer it'd crash or restart out of nowhere and that's probably why. Any ideas on what I can do or what's wrong with it?

Have you tried to run disk chec on a reboot?

Run checkdisk like Chevelle_Nut suggested. If that can't repair the file, it means that sector is no longer readable and you lose the data on that sector.

Help & Support under XP shows the following procedure...

If you want chkdsk to correct disk errors, you cannot have open files on the drive. If files are open, the following error message appears:
Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)
If you choose to check the drive the next time you restart the computer, chkdsk checks the drive and corrects errors automatically when you restart the computer. If the drive partition is a boot partition, chkdsk automatically restarts the computer after it checks the drive.
...and...
The chkdsk command requires the file Autochk.exe. If it cannot find it in the startup directory (%systemroot%System32, by default), it will attempt to locate it on the Windows Installation CD. If you have a multiboot computer, be sure you are issuing this command from the drive containing Windows.


MS also has instructions for running it at http://support.microsoft.com/kb/315265

Good luck...;)