If in both cases, the Factory default doesn't work, then your laptop's factory image defaults partition has vanished (i.e., been corrupted / deleted). In this case you will have to reinstall the operating system with the CD or DVD shipped along with the laptop. Follow the link below to install windows XP Pro on your own.
- Start the computer.
- As the computer starts, press the F8 key until the Advanced Boot Options menu appears on the screen.
- Press the down arrow to select Repair Your Computer on the Advanced Boot Options menu, then press Enter.
- Specify the language settings that you want, and then click Next.
- Log in as a user who has administrative credentials, and then click OK.
- Click Dell Factory Image Restore.
- In the Dell Factory Image Restore window, click Next.
- Click to select the check box for Yes, reformat hard drive and restore system software to factory condition.
- Click Next. The computer is restored to the default factory configuration.
- When the restore operation is completed, click Finish to restart the computer.
In both cases, if the factory default does not work, then your laptop's factory image defaults partition has vanished (i.e. been corrupted / deleted). In this case you will have to reinstall the operating system with the CD or DVD shipped along with the laptop. Follow the below link to install windows XP Pro on your own.