Sounds like the drive went bad if you can't even format it. Exactly what steps did you take to try to install Windows and what were the exact messages? Does the computer have a disk check option in the BIOS? If it does, run it.
Thanks for your attention
after i boot the laptop by windows 7 disk, i see install windows window and click next button then "install now" button setup then check accept license after that select Disk0 Partition3 and click Drive options(advanced) appears Format button and with click on it i see a window that is contain "The partition might contain recovery files, system files, or important software from your computer manufacturer. If you format this partition, any data stored on it will be lost." after click OK appears "Setup was unable create a new system partition or locate an existing system partition. See the Setup log files for more information."
i didn't find disk check option in the BIOS, but i boot the laptop with "memtest86" for around 20 hours. i find 2106 errors and 23 passes then i tired and pressed Esc button.