Download
RC.ISO and burn it to a cd as an ISO image. You may need a burning toy like
ISO Recorder to do this...be sure to get the version for your operating system.
Once you have burned this as an ISO image, insert the CD into the drive, and then restart the computer. Watch for the prompt to "Press any key to boot from cd" and press the spacebar when you see it. You may have to change the boot priority in BIOS Setup to accomplish this...we'll cross that bridge if we get to it.
When the "Welcome to Setup" screen appears, press
R to start the Recovery Console.
If you have a dual-boot or multiple-boot computer, select the installation that you want to access from the Recovery Console...by number (usually 1)
When you are prompted to do so, type the Administrator password. If you have not set an administrator password, leave it blank and just press "Enter".
At the Recovery Console command prompt, type
chkdsk /r and press "Enter". (note the space before /r)
This will begin a very long check of the file system...be patient. It may appear to hang or even back up a few times...this is normal. Once the check completes, type
exit and press "Enter". The machine will restart...let it try to boot normally...do not boot to the cd this time.
Let me know if this gets you back into Windows.