Changes in Windows 10 security now prevent applications from being able to set default applications programmatically. Instead users must set their applications manually through the Windows interface.

You can change your default PDF application in Windows 10 to PDF Studio by following the steps below:

Set PDF Studio as default PDF viewer

  1. Right-click on any PDF file.
  2. In the mouse menu, choose Open With -> Choose another app
  3. Select PDF Studio in the Recommended Programs list

            Note: Administrator rights are required in order to change default applications
  4. Check the box “Always use this app to open .pdf files
  5. Click OK