My Video Thumbnails in Windows (File) Explorer have gone and been replaced by the generic Icon for the program I select to play the video files (VLC, GOM etc). It's happened to my AVI and MPG files on ALL my Windows 8 PC's.
The Folder Options are set to "Display file icon on thumbnails" and the Performance Options/Visual Effects are set to "Show thumbnails instead of icons".
I tried using the "Media Preview" program but it only works on about one in a hundred icons.
If it's happening on all my PC's it must be happening to others, any clue how to fix this?