From the right-click menu 'Open with': right click a pdf file - click Choose another app - select Foxit PhantomPDF and check the option 'always use the app to open. Below are several ways to change default app. pdf file' > click OK to apply the change. To set Foxit Reader as default, you must change the default setting via system. You can also right click on a PDF > choose Open With > select ' choose another app' > select Foxit app > check the option ' Always use this app to open.

This set didn’t work so I set all four to Adobe which restored Adobe Reader as default. Open Foxit App, go to File > Preferences > File Associations > Advanced > check all options > click on OK > click on Make Default PDF viewer. Open Foxit App, go to File > Preferences > File Associations > Advanced > check all options > click on OK > click on Make Default PDF viewer > Click on OK to apply the change. Following your advice, I went to Tools > Options > Applications and set all four PDF Reader boxes to Ask in the hopes of being able to use Adobe Reader when I want. Open Foxit App, go to Help > select Set to Default PDF Reader. Use the File associations in Settings or Control Panel Setting Foxit as the new default in Windows OS: Proceed past the Foxit welcome screen and click the Help menu at the top of the Foxit software.

How to make foxit reader my default