Set Default PDF Reader
Changing the Default PDF Reader
To change the default PDF Reader program for Windows 10:
- Right click on the Windows icon in the bottom left corner of the screen. 
- Select Apps and Features from the menu.  
- Click on Default apps on the left side of the screen.  
- Scroll down under the Default apps section, then select Choose default apps by file type.  
- Scroll down the list and locate the .pdf file type. 
- Click the app listed as the current default PDF Reader.  
- Select the desired reader from the listed apps.  
- If the desired app is not available, select Look for an app in the Microsoft Store and download the desired PDF Reader.