This depends. If you are going to play games go with windows 7 or 10 there are still alot of games that are not compatible with linux
If you are computer savvy and a fast learner, download ubunu or elementary they have easy to use GUI's. You can download a number of tools to do homework and other buisness related things, you can also watch movies and music with the built in players that are in my opinion better than windows in many ways.