|Hard drive failure is very common with laptop computers. If you look at the hard drive light on the computer when trying to start Windows, you will probably see it is constantly on. This is because there are bad sectors on the disk that cant be read. |
You can fix it yourself with a new hard drive but you will have to reload the operating system. Do you have the restoration discs? If not a call to Dell would be the next step.
If the computer runs from the battery, I would ignore this message for now, but it could be that it is not making good contact, try removing it then putting it back.
Computers... designed to entertain,help with work but most of all to frustrate you!