To get Dell QuickSet.
Head to dell.com and put in the service tag to find the downloads for your machine. I don't want to upset you but that's a basic item you should write in your cheat sheet.
Use Google to learn "What does Dell's QuickSet do?"
This is all volunteer so I can only do so much. You lead you need lots of help so this may be not enough but I'll try to share the little things I know about.