A JavaScript error occurred in the main process message on Windows 11/10

Some users are reporting a generic error message – A JavaScript error occurred in the main process, Uncaught Exception that is triggered when they try to launch some apps on Windows 11/10. In this tutorial, we will show you how to resolve this issue. There aren’t many determined causes for this problem, however, the main reason can be that the app, its database or its settings have most likely gone corrupt.

If you receive A JavaScript error occurred in the main process, Uncaught Exception message when you try to open apps like Skype, Discord, etc, in Windows 11/10, then you can carry out the following suggestions:

1] Delete the app data folders in %AppData% and %LocalAppData%.

2] Re-register the JavaScript dll file.

3] Reinstall Skype, Discord, etc, app that is having problems

Timecodes:
0:00 Intro
0:26 Delete the AppData and LocalAppData folders
1:11 Reregister the JavaScript file