This tutorial will try and help you resolve the problem of Windows XP restarting. You will need an original or backup XP CD to complete this fix. Causes of this error There are a few reasons why this error appears but the most common is a corrupt file that XP is unable to read from the hard drive. Before using any of the solution please ensures you have no floppy disks in your drive and there are no USB memory sticks attached to the computer as this may be causing the error. Solution - Check your hard drive for errors and repair them.

• Insert you XP CD into your CD\DVD drive,
•  Restart your computer.
• Then prompted to "Press any key to boot from the CD" press any of the keyboard keys except "space" to start the XP CD boot.
• If you do not see the "Press any key to boot from the CD" message you will need to set your computer to boot from the CD before the hard drive, a tutorial on this can be found here, Set your computer to boot from a CD or DVD ".
• The computer will now boot into the blue "Windows Setup" screen, do not worry none of your files are being overwritten at this time.
• The next screen will display "Welcome to setup" and you will be given three choices, please press "R" to "Repair a Windows XP installation"
• The screen will now turn to black and you will be asked "Which windows installation would you like to log onto", press "1" then "Enter" to log on.
• You may now be asked to enter the administrator password enter it here if you have one otherwise press "Enter" to continue.
• The screen will now display "C:\WINDOWS>" please enter the following command to start checking your hard drive.
• "chkdsk /p /r" then press "Enter"
• This may take some time so now is probably a good time to put the kettle on!
• Once finished the screen will display the results of the check, remove the XP CD from your drive then type "exit" and press "Enter" to restart the computer.

If Windows XP starts normally then the problem has been resolved however it would be a good idea to start backing up your important files as this may be an early indication of problems with your hard drive.