However, in some situations, changing the default application for handling the PDF files does not stick: it may work once or twice, and then Microsoft Edge takes over, reverting the file association of the PDF files to itself.
command that appears on the right-click menu for the PDF files. If you prefer another program to open the PDF files, you can set up that program using the Default Programs tool of Control Panel.
Windows 10 comes with the new web browser, Edge, that is also set up as the default application for handling several other popular files, such as PDF.
