Browser isn't supported - required media types

Neal -

Some versions of Windows 10 will not play videos correctly - these include versions that have and KN.  These do not include video codec files by default, which will impede the ability to play .mp4 video files in some browsers.  A different version of Windows or the codec file listed in the following Microsoft article may be needed: 

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https://support.microsoft.com/en-us/help/4039813

Depending on the Windows specifications, you may need to match the Version and OS Build with the download links from the following website site:

e.g.

https://support.microsoft.com/en-us/help/3145500/media-feature-pack-list-for-windows-n-editions