By default, all are selected, though you might (or might not) want to un-check file types you'd like to open with another programme. wav) with VLC for each 'association' chosen opening that file type will launch it in VLC. During set-up, VLC will ask you if you want to associate certain media file types (such as. The simplest way to set VLC as the default media player for Windows is during installation of VLC. Windows See also: How to associate media files with VLC. 3.1.1.4 Changing the default application for videos manually (the hard way):.3.1.1.3 Changing the default application for videos using menus (the not-so-easy way):.3.1.1.2 Changing the default application for videos using menus (the easy way):.3.1.1.1 Instructions on how to do it in GNOME.