Why is Windows Media Player not playing mp4?

Related questions

1. How do I convert a m4a to mp3?
2. Can I convert m4a to mp3 in Windows Media Player?
3. Why can't I open an mp4 file?
4. How do I convert m4a to mp3 on my laptop?
5. How do I convert mp4 files to play on Windows Media Player?
6. How do I convert WAV to mp3 using Windows Media Player?
7. Why can't Windows Media Player play mp4?
8. Can mp4 play on Windows?
9. Can Windows 10 play mp4?
10. Why mp4 videos are not playing?

Tags

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2. #multiple
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4. #microsoft
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6. #encounter
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12. #audio
13. #format
14. #according
15. #video
16. #contain
17. #files
18. #issue
19. #though
20. #which
21. #codec
22. #sometime
23. #install