If you received “This item is was encoded in a format that’s not supported. 0Xc00d5212” when trying to play AVI video files in Windows Media Player on Windows 10 computer, here’s how to fix it.
Windows Media Player
How To Get the Free HEVC Codec for Windows 10 / H.265 / HEVC Video Extensions
In this tutorial, learn how to download the free HEVC / H.265 Video Extensions on Windows 10.