

To the right of this file type is the program that is currently set as default, or a box with a "+" sign in it that says Choose a default. Scroll to the bottom of the right column and click on Choose default apps by file type.Window 10 Professional version 1703 and newer:.Window 10 Professional version 1607 and older:.Click the Windows Start button > Settings.On a Windows 10 device, to change the default program for opening PDFs to Adobe Acrobat Reader. But after making an upgrade to Windows 10, PDF files are automatically opened in PDF Explorer even if the Acrobat Reader is installed on the machine. The earlier versions of Windows platforms (Windows 7 or Windows 8) have a universal PDF supported that allow opening PDF files using Acrobat Reader, Adobe Acrobat, or Foxit Reader, or similar programs. Why are all of my PDF images and attachments opening in Microsoft Edge instead of Adobe Reader?
