How to remove windows default apps in Windows 8, 8.1 and 10

Step 1
Open power shell as an Administrator

Step 2
Type the command Get-AppxPackage. It  will show the list of windows apps.

Step 3Now choose the application which you want to remove. Select the Package full name and type the following command. 

remove-appxpackage “package full name” -confirm

For example, to remove the xbox application use following  
remove-appxpackage Microsoft.XboxApp_5.6.17000.0_x64__8wekyb3d8bbwe – Confirm

Xbox app will be removed..