Update: I accessed DSR (Dell's System Restore) partition using <Ctrl> + < F11> at splash screen. Was worried about the partition being corrupted so check it out 1st before restoring. I used DSRfix, a program from http://www.goodells.net/dellrestore/fixes.htm
to test the integrity of the partition.
At this time I have successfully restored the system to it's factory condition and am updating Windows now. Thank you both for your replies.