Since you got it recently, I assume you don't have many important documents on the computer. Save whatever you need to a flash drive and format it if you have the OS installation CD. Dell always loads useless crap onto their computers that make it run slower. Software that supposedly "optimize" your computer usually don't actually give you a noticeable difference so I advise not installing anything. If you still want to try one, of the ones I've used, Tuneup Utilities is the easiest to use and actually has a few tweaks that can help but still not give you a noticeable difference.