Windows 10: Unable to Play MP4 Files

So I have had a very odd situation develop. I am unable to play mp4 files or any video content using the native Movies & TV UWP app.


When I attempt to play, I get an error


Can't play
Choose something else to play. This item is in a format we don't support.
0xc00d36b4


Now lets go over the basics: yes the file could be played previously in the movies & TV app; and as I said, its not just one file... its all of my video files.


Initially I suspected a codec issue, however I am able to play mp4 files no issues using an alternative media player such as VLC. I am also able to play the files on another Windows 10 PC using the Movies & TV app without issue.


So, what steps have I taken? I have conducted the following:

1. Run the Repair / Reset on the Movies & TV UWP app
2. Reinstalled the Shark007 Codec Pack
3. Installed the K-Lite Codec Pack
4. Uninstall / reinstall the Movies & TV UWP app via the Windows Store twice
5. Uninstalled the Movies & TV UWP app using PS script then reinstalled via Windows Store
6. Run the steps for System File Checker tool as per Use the System File Checker tool to repair missing or corrupted system files microsoft.com
   1. This found some missing files however after restarting and reinstalling the Movies & TV UWP app the issue remained
   2. I re-ran the SFC and no missing files were found
7. Run the in built Windows Troubleshooter for not being able to play videos and result came back all codec's and programs working as expected no issues detected
8. Spoke with MS Tech Support first level via chat who advised after going through the above that a full Windows 10 reinstall would now be necessary to resolve

Each of the above was interspaced with PC restarts. I have also confirmed that the video files can be played in Microsoft Edge 88.0.673.0 Official build dev 64-bit

Now I could keep using VLC, but to be honest I really prefer the Movies & TV app. If it was just video playback that this was affecting, I probably would just deal with it, unfortunately though, this error is preventing me from launching Microsoft Flight Simulator. This is due to the fact that that program launches and has some non-skippable mp4 videos that play as the program launches. At present this issue is resulting in the sim hanging at launch and never loading as it cannot load until these videos play, and this error, whatever it is, is preventing these videos from playing.


I would like to avoid a Windows reinstall, so I am here to look for advice and see if there is anything I might have missed or could do in additon to what has already been done.


Thanks in advance for any assistance!


Cheers

Tristan

:)

 

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