Error Code 2000-0142,Msg: Unit 1: Driver Self Test failed. Status byte =79.

I ran the Dell Pre-Boot System Assessment Build 4104 :

I held the F(sub n) key and pressing the power button allowed the Pre-Boot System Assessment Build 4101 test to run. Error codes are as follows:

1.0   Error Code 0142, Msg: Error Code 2000-0142, Msg: Unit 1: Driver Self Test failed. Status byte =79.

2.0   Ran Extented Test: Error Code 3600.01.23, Battery test failed – reporting attached charger.

Also, I was able to boot into safe mode okay, however, System Restore would not proceed. The error message: The disk OS (C:) has errors, check the disk for errors. I checked both boxes, clicked start and kept getting “Schedule disk check next time you start the computer. I never was able to run the disk check.

Please help,

Thank you,