I have 3 Dell laptops right now and 1 Dell desktop.
I've owned at least 4 other Dell laptops in the last 2 1/2 years.
I've built my own PCs for a while but as far as "namebrand PCs", Dell can not be beat.
You may have just gotten a "lemon".
It happens.
I can understand getting a lemon, it does happen. It's getting Dell to honor their warranty that is frustrating.