Hello. Recently my father downloaded a Windows update thing that included the newest version of Windows Media Player, and since then I have had trouble getting my preferred media player to work with files. I can still open up it up and select a file, but it is impossible to add it to the "Open with" list, which is annoying. No error messages pop up or anything, but when I go to Browse in the "Open with" window and select the program, it just reverts to the (unchanged) "Open with" window. Thanks in advance.