Windows 10 File Associations Not Working

[KnightAzul]

Hi,

I have installed XnView installed on Windows 10 (edition Pro, version 1709, build 16299.371). I want to set the file associations as "The most used" like I had set on Windows 7.

Running XnView as administrator I go into: Tools -> Options -> System integration -> Associations

The options "The most used", "Add all", "Restore all" are all greyed out . Only "Windows file associations" button can be clicked and when clicked it says "To change your default apps, go to Settings > Apps > Default apps"

So I go to Settings -> Apps -> Default apps. Under "Set defaults by app" I can see XnView but:

• There are much less file associations possible here than inside the XnView app (as a random examples: .apng does not exist for PNGs, .pic does not exist - they are both in the "The most used" list in XnView)

• There is no way to select "The most used" which it what I want

Even by going to Settings -> Apps -> Default apps -> Choose default apps by file type: some of the XnView extensions are not listed (as a random examples: .apng does not exist for PNGs).

Do I really have to associate each extension manually for "The most used" one by one by creating a file with that extension and then right clicking, open with, etc. There are at least 50 file extensions in the "The most used" list!!!

Thanks for any help!
KnightAzul

[hier_kommt_luis]

Win 10 has been major-updated last week, so maybe there some issues would take place specifically