So, you must learn to install and uninstall codecs for Windows. Independent app developers also develop codecs based on the specifications of the apps they are developing. Windows Media Player supports a number of other file types, but Microsoft appears to be pushing users away from the pre-installed application. So, downloading them is not a big deal, either for users or for developers. The Movies & TV app supports only some common formats like MOV, AVI, and MP4. If it isn't installed, download Movies & TV from the Microsoft Store. This is the alternative name for the app in certain markets like the UK and Australia. If you can't find the Movies & TV app, look for Films & TV instead. If you get a "format is not supported" error, you'll need to try one of the methods below.
Open the Movies & TV app or the Windows Media Player and attempt to open the file. Completely stumped, cant play HEVC videos at all. Purchasing, installing, and reinstalling the HEVC codecs from Microsoft via the store. These extensions are designed to take advantage of hardware capabilities on some newer devices including those with an Intel 7th Generation Core processor and newer GPU to support 4K and Ultra HD content. Wasnt working with them installed and had planned to reinstall them, now I cant. Play High Efficiency Video Coding (HEVC) videos in any video app on your Windows 10 device. If you're unsure whether Windows supports your video file format, try it first. Uninstalling HEVC codecs from device manufacturer. If you're struggling to play unsupported video formats, you'll need to use a third-party video player or codec or convert the file instead. One solution would be using software like Handbrake to convert the video file from H.265 to H.264, but I consider that a "hack" as this really should work with my system spec.Windows apps like Movies & TV and Windows Media Player allow the playback of certain types of video only.
The CPU usage is going through the roof and it's not using Hardware Acceleration. Playing HEVC H.265 videos using Windows Media Player and GoPro Quik then the 4k 60 fps video appears all stuttering and becomes a slideshow.