You can delete or can remove File Type Associations using Registry Editor in Windows 11/10. We show you how to do this the right way.

Need to use third-party programs to open files on your PC? Here's how to change file associations in Windows 10 and choose which apps open which file types.

If you can't change default app by file type in Windows 11/10, then reset the problematic app, remove file type association, etc.