✔ 最佳答案
This is very likely your notebook harddisk is dead. If your warranty is no longer valid. you can un-install the harddisk out and put it into an USB 2.0 harddisk box and test, connect to other PC/notebook to test.
If it works and you can read everything inside, that means, your windows has problem, you should order a recovery disk, put your harddisk back and recover it.
If your harddisk is not working in other PC, you can buy a new harddisk and restore your windowsXP back through recovery CD.
Pls note that your harddisk data may be loss if you directly recover your windows through recovery CD.
Or the best way is to have your warranty, just send it to Toshiba for repair.
Remember to make a copy of recovery CD and put it in safe in the future!!!
Hope this help! Good luck!!