Fixing the 'NTLDR Is Missing Error'
1. Turn off your computer and insert the Windows XP Restore CD. Turn your computer back on and wait for the message 'Press any key to boot from CD...' Press any key on your keyboard to launch the Restore program. When the program boots, you will see an option to press 'R' to restore your XP Operating System. Press that key to begin the restore process.
2. Press the number related to the Windows XP set up you want to fix. Typically, this is simply the number '1' but if you have multiple operating systems installed, it may vary. Next you will be asked for your administrator password. Enter your password or press 'Enter' if you have not set one.

3. Type the following set of commands into the MS-DOS prompt that will appear:
D:\ or if your DVD/CD drive is at another location enter that location such as E:\ or F:\ then type 'copy D:\i386\ntldr c:\' then press 'Enter' followed by 'copy e:\i386\ntdetect.com c:\'
Press 'Enter' and type 'fixboot.' Press 'Enter' and type 'fixmbr.' Press 'Enter' and finally type 'bootcfg /rebuild' and then press 'Enter.'
4. After pressing 'Enter' the final time, your computer will walk you through the steps. The options to watch for will be the system you are repairing. This will be the same system you selected at the repair screen. Again, you will typically only have 1 operating system to choose from. Also, you will be asked for an 'identifier.' It is suggested you type in the full name of your operating system for easy search reasons at a later time.
5. Allow the process to complete and then remove your CD/DVD from the computer. Type 'Exit' and press 'Enter.' Your computer will not restart and should launch right back into your Windows XP set up.