Hi sherief2003,
This indicates a hard drive failure. We need to replace the hard drive.
Kindly back up data.
I have provided a link below for drive savers data backup:
Click on the above link and select the options accordingly. They would help you in backing up data.
You can also contact any local technician to back up data.
If the computer has active warranty I shall go ahead and arrange for a service.
You may connect the external monitor with VGA port.
Check warranty status: http://dell.to/10pMa86
Kindly private message me the service tag of the computer. To private message the service tag click my User name and click Start conversation.
Awaiting your response!