My Toshiba Laptop came with a Toshiba 80GB HD.
Toshiba does not provide diagnostic tools for hard drives, currently.
Hard Disk Drives and Optical Disk Drives purchased as part of a complete system are warranted by the system OEM. 2.5" Hard Disk Drive ("HDD") products purchased in the United States and Canada from Toshiba authorized distributors carry a 3-year limited warranty.
Download Ultimate Boot CD
UBCD and burn it as an iso CD. It has several HD tools included. It boots off the CD into RAM so it does't need a funtional HD to run correctly.