Whenever I wanted to select any image for the background, user account etc., the file explorer window which opens up get hidden, before I can do anything and it don't even let me do anything where I was. It doesn't happen every time, but it's too irritating.

For example, if I wanted to change the background image, I click on Browse and the window open and get hidden instantly. I can only see the Personalize menu but can't do anything there and need to close it via Task bar or task manager.

Any idea to solve it?