Samsung Series 3 Laptop?

I have a Samsung NP300E5A-A03US laptop, It has it's own interface for it's updates, it keeps telling me I need a bios update, I have called Samsung support, chatted with Samsung techs. I have done this update at least 15 times, 2 different ways. The tier 2 tech told me that I didn't need the update, He said why do you think that your computer needs a bios update,and I said, because I keep getting these messages that I need it, and it is in the interface as needed. He said, you don't really need it, I said, why does it tell me I need the update. He said ,is your computer ok?, I said, it has some performance issues, and it turns stuff on and off by itself.I have talked to at least 5 different people ,they all make me go thru the same steps. I keep telling them, this won't work, I have tried it ten times. They are starting to get rude. I googled bios updates and Samsung, and a lot of posts came up. Can someone help me and also to understand what bios is, it says it helps with computer stability.