Your laptop is filled up with what's known as bloatware. All big companies put a lot of it on their computers. It's usually many applications running in the background that a company's sponsors have made.
There are a few of choices you can make. These two are usually the easiest.
1. You can reformat your computer. To do this we'll help you out but you need to make sure you have all the needed drivers.
2. You can download Autoruns
and post a screenshot here so we can tell you what applications you can close to save memory.