Setting Default App in Windows 10

Step 1: Go to the "Settings" tab in Windows 10.

 
Step 2: Under "Settings" Tab, you got the System Icon option. Click it.
 
  
Step 3: Under Settings -> System -> Default Apps. You can see the option of setting the Default apps for your Windows 10.
 
 
Step 4: Clicking the "Choose a default" option for your apps. "Windows store" will be redirected. From there, you are able to access the apps needed for your Windows 10.
 
 
Step 5: Click it and get the app from the store.
 
 
Next Recommended Reading File Picker in Windows 10 Universal App