As Feck's link points out, it is hard to buy a new Windows machine which does not come with bloatware.

If you search for "bloatware remover" you will find a number of resources which will help to get rid of it.

Also, Windows comes with a number of legit services which are often not needed - they chew up RAM unnecessarily.

A search for "unnecessary windows services" will give you a number of sites which can walk you through how to disable those services.