Microsoft Edge only opens PDF. Can't default to any other program.

[ScubaSteve00S]

I have Adobe Acrobat Pro installed. For some reason, edge is the default program. I have tried to change this and have had zero success. When I select any other program but edge, it will default back to edge. 

On the side, it says that an error has occurred and it defaults back to edge. Can someone please help me it's infuriating. Never had this issue before. 

[#2]

What finally worked for me was restarting the computer and before opening anything, go to default apps and change it.
Sometimes it really is back to basics. I drilled through the edge settings and everything.
I think the actually fix was to make sure ever instance of msEdge.exe running in the background was killed which of course a restart achieved.