The described behavior matches a generic video playback/display issue where only a solid color (green, black, or white) is shown instead of the actual video. In the available guidance, similar symptoms are caused by Windows video components not being installed or working correctly.
Follow these steps on the Windows device where the video is being played:
- Restart Windows
- If the issue started after installing or updating a multimedia or video-related program, restart Windows first and test video playback again.
- Reinstall Windows Video Compression components
- Open Control Panel.
- Select Add/Remove Programs (or Programs and Features depending on Windows version), then go to the Windows Setup tab.
- In Components, scroll to and select Multimedia.
- Select Details.
- Locate Video Compression:
- If Video Compression is checked, clear the check box and select OK, then OK again to remove it.
- Go back into Multimedia → Details, check Video Compression again, select OK, then OK once more.
- Follow any on-screen instructions to complete installation.
- Restart Windows and test video playback.
If the green background appears when using a camera (for example, in a meeting app) and a background effect is enabled, disable the background within that app and test again.
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