If you do not have a windows xp disk, download the following file: rc.iso
Now, go to Alex Feinman 's website
and download the Isorecorder power toy. Install it on a working machine and reboot. Place a blank cd in your cd-burner and then right click rc.iso, and choose burn to cd from the context menu.
You can use any cd burning program that supports ISO burning, but each is different and I cannot necessarily direct you on how each program works.
Place this cd in the non-working computer and reboot. You should boot to recovery console. If you do not, you need to set your cd-rom as the first boot device in your PCs BIOS.
When the Welcome to Setup screen appears, press R to select the repair with recovery console option.
If you have a dual-boot or multiple-boot computer, select the Windows installation that you want to access from the Recovery Console.
Type the administrator password when you are prompted to do so.
NOTE: If no administrator password exists, press ENTER.
At the command prompt, on the drive where Windows is installed, type chkdsk /r, and then press ENTER.
At the command prompt, type exit, and then press ENTER to restart your computer.If this procedure does not work, repeat it and use the fixboot command in step 5 instead of the chkdsk /r command.