Riveracr

I tried this and it worked for me.

Creat a shortcut on desktop of windows Explorer
1) Right click on shortcut
2) on the target: (type in the path without quotes) "C:\Windows\SysWOW64\explorer.exe /separate"
4) Then you can navigate to your videos folders and it will display all the thumbnails as long the videos are not corrupted and have the properties for the right program to view with. Good Luck!