You may experience the following error when starting up Windows XP:
"Unmountable Boot Volume..."
This is probably due to a damaged hard disk file system or a corrupted "boot.ini" file.
To fix the problem, first make sure that your computer is set to boot from the CD-ROM drive then follow these steps:
1. Insert the Windows XP CD-ROM into the CD-ROM drive, and then restart the computer.
Click to select any options that are required to start the computer from the CD-ROM drive if you are prompted.
2. When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
3. If you have a dual-boot or multiple-boot computer, select the installation that you must access from the Recovery Console.
4. When you are prompted, type the Administrator password. If there's no administrator password, just press ENTER.
5. At the command prompt, type chkdsk /p , and then press ENTER.
6. At the command prompt, type fixboot, and then press ENTER
7. At the command prompt, type exit , and then press ENTER to restart your computer.
The system should now boot back into Windows.