Posey's Tips & Tricks How To Fix a Missing File Explorer Shortcut Here's how to restore missing context menu options and file associations in Windows when File Explorer shortcuts By Brien Posey 04 ...

Set Default Apps: Scroll down to the bottom of the Default apps page and look for the file type that is causing the issue. Click on the current default app to change it to a supported application.

Running the app through the Command Prompt can bypass the "This App has been Blocked by your System Administrator" message. However, you need administrator privileges to execute the command.