1. Insert the Windows disc into the system. Restart the computer.
2. Press any key when prompted to boot from disc.

3. Enter your language, keyboard and currency type from the onscreen menus.
4. Click 'Repair your computer.' Click the drive containing Windows and press 'Next.' Click 'Command Prompt.'
5. Type 'bootrec.exe' and press 'Enter.' Type '/fixboot' and press 'Enter' to restore the boot information on the drive.