In this video, I will show you step by step guide on how to change Microsoft and set Adobe acrobat reader as default PDF Viewer in Windows 10 1. Launch the Settings App 2. Click on Apps, then click on Default App 3. On the right side, scroll and click on link which reads Always use this app to open .pdf files 4. Now on this window scroll down and look for .PDF file. By default Edge browser is the default pdf viewer click on it and from the list of apps select Adobe reader and click OK. Follow me on Twitter: https://www.twitter.com/vineydhiman Follow me on Facebook: https://www.facebook.com/cursedbaim