Windows 10: Video Thumbnails not showing. Images work fine

Windows stopped showing video thumbnails in explorer and it's driving me nuts. I make videos for work and now it's like I'm working blind because I can't see what I'm opening. Image thumbnails still work. I have tried every solution I have been able to find but none have worked They all seem to be targeting all thumbnails broken but these are just videos. I know what I did to cause it I think but I'm not sure why it would have broken them. I change my default media player to VLC at one point and It wouldn't show thumbnails worked before switching so I switched back to the default Movies ap

:)

 

Thumbnails won't show images

On Windows 10 my images aren't showing the image in the thumbnail. It's showing a pieces of blank paper. This randomly started happening today. I have checked the "Organize" setting and the "Always show icons, never thumbnails" is unchecked. I'm not sure
what else to do. Any suggestions?

 

[Windows 8.1 Pro] Video thumbnails not showing, and also certain image files

Not sure since when because I don't pay much attention, but somehow recently my computer stops showing video thumbnails. Image files, however, show their thumbnails just fine. What could be happening?

I think video thumbnails still show for me as of January 2019, but I really can't remember when it stopped working.





I already unchecked the "show icons" in the Folder Options, and since image files still have thumbnails it shouldn't be an issue with that.

ETA: I already reinstalled Display drivers and tried Clean Boot. VERY oddly enough, the video thumbnails still show when I open my
phone folders with the computer. This is from my Phone Recorder:





TIF image files also blanked out, despite JPG and PNGs working just fine:

 

Windows 10 Pro N not showing Video Image thumbnails in any video format

Windows 10 Pro N not showing Video Image thumbnails in any video format. How can I get back the thumbnails it is quite hard to search for video that I'm looking for without the thumbnails.