The laptop is a Toshiba.
The error code on Blue Screen was a stop error code 0x00000024. When I looked that up online, it pointed to bad hard drive. I used a Windows XP CD to get into the Recovery Console and ran a check disk. It got about half way and told me it found sectors with problems that weren't repairable.
As a last attempt, I thought I might be able to run a restore that would reinstall windows but keep the old data in a recovery folder. I couldn't get the restore program to open though. I looked up the keyboard button to press during POST from the Toshiba site (should be the "0" key) but it never ran. At this point, I figure the HD is bad.
I could buy a new HD for next to nothing, but it's not mine and I don't think the lady will want to purchase another copy of Windows (too much money). The old version of Windows, of course, is the OEM that came with the laptop. She doesn't have any restore CDs, but even if she did, I don't think they'd run on a new HD of a different size.
Trying to figure out now the cheapest rout to get this lady back in business without using this old HD.