What do you use to open the video?
Are you talking about when viewing a picture or video or are you referring to the icon shown in the windows file explorer? Screenshots also help.
Such as you want it to show like this
View attachment 39040
but it shows up like this
View attachment 39041
Open file explorer (the yellow folder icon), click on View at the top then Options > 'Change folder and search options' and View again and uncheck the following, Apply, Ok
View attachment 39042
I was writing that LOL!