Not able to see thumbnails

[DavidOlson]

Can anyone help me.

I have 2 lap tops. When I try to view my photos from my Canon 6D Mark II on one I can see the thumbnails and they open and I have all the camera information. When I try to open them on the other I can not see the photo in the thumbnail and when I try to open it it says "It looks like we don't support this file format" and I don't have any of the camera information.

Does anyone know why It may work on one but not the other lap top. I also have a Canon 80D and when I try to open the files they open as they should on both computers.

If I go through an edit program they open just fine. 

I should just be able to put the card in the computer and look at the thumbnails without going through an edit program. Just can't figure out why it works on one computer but not the other. Any ideas would be appreciated.

[DavidOlson]

Wow It looks like I got it. I downloaded Windows 10 version 1909 this morning.

The thumbnails still don't show the picture but when I went to open one of them, now I got a message that I needed an additional codex with a link to Microsoft store which brought me to that same link. You where right I had not finished the whole process. Now when I try to open the thumbnail it opens up a separate window with the picture. Not quite the same process as with my 80D but same end result.

Thank you for your help I really appreciate it.  

[DavidOlson]

New update after my full new update and the Raw Image Extension download, everything is working as it should.

Thank you those that commented and never judged. But just helped me work it out.