Try this:
"1. Power the computer on.
2. When the Dell screen appears press and hold the <Ctrl> key on the keyboard, press the <F11> key, then release them both at the same time.
The Dell PC Restore by Symantec window appears.
Press the keys one time only. If you press them more than once, a keyboard error occurs and the process has to be initiated again.
3. Click the Restore button or press the <Tab> key to highlight Restore and press the <Enter> key.
A caution message appears advising that all data will be lost.
4. Click the Confirm button or press the <Tab> key to highlight Confirm and press the <Enter> key.
The Progress window appears. Once the process is begun, Dell PC Restore usually takes only 8 to 10 minutes to complete.
When the restore is complete, the message The system recovery process was successful appears.
5. Click the Finish button or press the <Tab> key to highlight Finish and press the <Enter> key.
The computer will restart."
P.S.
"Dell PC Restore by Symantec is available on Dimension and Inspiron systems that shipped on or after 7/16/2004 in the Americas and 8/30/2004 in Europe."