PDF file associations get reset every time I restart?

I dont agree. This problem only occur with Adobe Acrobat reader. It is porly written

The feature team for file associations explained that Windows 10 changed the way the user's file associations are recorded. Program X wants to set itself as the user's preferred handler, but they want to do so without requiring the user to confirm the change. How considerate of them. So they manipulate the registry keys directly. (I bet somebody got a really nice bonus for that feature.) But they are manipulating them the pre-Windows 10 way. This means that Windows 10 detects the settings as corrupted and throws them away, causing the handler to fall back to the system default