You can allow or block Microsoft Edge from opening PDF files externally by changing some settings using Registry Editor or Group Policy Editor in Windows 11/10.

How to Change Settings to Open a PDF File. A Portable Document File is a type of file that uses an open standard across different computer platforms and programs.

Choose the PDF file option and click Change program. In the pop-up window that appears, Select Microsoft Edge and check ‘ Always use this app to open .pdf’ box Click OK to set Edge as a ...

On Windows 10, you can make another app the default to open PDF documents instead of Microsoft Edge, and in this guide, we’ll show you two ways to complete this task.