Try these steps if this doesn't work comment back :
1. Right-click on the filename, and select Open With Select Choose Program at the bottom of the list that's displayed. 2. In the resulting dialog box, "Windows photo viewer " should already be listed. Click on it. 3. Check the box labeled "Always use the selected program to open this kind of file". 4. Press OK
Now try opening the pictures/videos ( same for the videos )
But i think that some codes are missing from all the video players you are using : try using gomplayer it automatically pop up window if some codes are missing