How to Fix the Stop C0000218 Error in Windows XP

How to Fix the STOP: c0000218 {Registry File Failure} Error
1. Check if your hardware is compatible with Windows XP. You can find compatibility information at the official Microsoft marketplace website (see Resources).
2. Use the recovery system if your hardware is compatible but is still not working. You can access the recovery console by simply putting in your Windows XP CD before booting your computer. You will be asked whether you want to 'Repair or Recover.' Simply press the 'R' key.
3. Type in your administrator password. (You must have admin access to use this option.)
4. Choose to use the 'chkdsk' command line, which will allow you to check your disk. Once in the chkdsk use the 'chkdsk /r' command to check your hard disks for errors. Press 'Enter' to start the disk check.
5. Type in 'chkdsk /f'. If any errors are found this will allow your computer to attempt a fix of the broken drive.
6. Restart your computer after the disk fix has been performed, and attempt to run your Windows XP setup again.
7. Replace your hard disk if the setup fails with the same message. At this point your hard disk is more than likely broken and needs to be replaced.