Windows 10: Why does Windows Photos say "Something went wrong" when I try to open my videos?

I used my camera to record videos for my short film, but when I try to open the file to watch them, Windows Photos says "something went wrong". The videos are MP4's, so I don't know what's going on.

:)

 

Videos and photos no longer opening

Hi Serge,

Videos and photos can be opened anytime as long as the program supports it. You will only cannot open it if they become corrupted.
To ensure that we can provide the appropriate resolution for your concerns with opening files, we’d like to ask you a few questions:

• What is the program you're using to open videos and photos?
• Where is the "view mode" you are talking about?
• How do you open videos and photos?
• What is the format of your videos?
• What is the format of your photos?
• Have you opened these videos and photos before?
• What were the recent changes made on your computer before you experienced this issue?
• What troubleshooting steps have you done so far?
• Did you receive any error messages? If yes, can we have a screenshot?
  

Get back to us once you provide us these additional information.

 

Photo and videos will not open

Hi Stephanie,

Having a damaged system file within your user profile might be one of the possible reasons why you are experiencing issues with opening photos and videos on your device. To further troubleshoot your concern, we suggest that you create a test user profile.
Check if you will have the same issue with opening photos and videos using
the test user profile that you'll create. This is for us to verify if the issue is isolated with one user profile or with multiple accounts.

To create a test user profile, follow these steps:

• Using Cortana search, type Settings and then hit the Enter key.
• In the Settings window, select Accounts.
• Select Family & other people.
• Choose Add someone else to this PC.
• Click I don't have this person's sign-in information.
• Click Add a user without a Microsoft account.
• Name the user as TEST and then provide a password.

Update us about the results.

 

UNABLE TO OPEN IMAGES AND VIDEOS

Hi,

Have you tried performing the troubleshooting steps listed in the article given by
Robert Caw? It was posted above.

As a workaround, you may try these steps:

• Right-click the photo or video.
• You'll see a pop-up box, choose Open With.
• Then choose Paint or Photos to open an image.
  
  (There are also options to open videos when you click Open With.)

We look forward to your response.