Windows 10 comes with several apps installed by default, some which you might never use, like the Xbox app or Phone Companion. Here's how to remove those apps.
You'll need to run PowerShell as an administrator, but after that all you have to do is copy and paste the code Thomas Vanhoutte has posted on his blog.
The apps you can remove with PowerShell are: 3D; Camera; Mail and Calendar; Money, Sports, News, and Weather; Groove Music and Film & TV; People; Phone Companion; Photos; Solitaire Collection; Voice Recorder; and Xbox.
According to some reports on the interwebs, removing the Xbox app could improve gameplay on Windows 10.
Annoyed by other minor things in Windows 10? You can tweak them away too.
Remove default Apps from Windows 10 [Thomas Vanhoutte]