- Go to https://store.rg-adguard.net.
- Search for the HEVC Video Extensions from Device Manufacturer (
Microsoft.HEVCVideoExtension) app by entering the following store URL into the search box and clicking the ✔ button.https://www.microsoft.com/en-us/p/hevc-video-extensions-from-device-manufacturer/9n4wgh0z6vhq- Do not use the normal HEVC Video Extensions app URL, because that can't play HEVC videos in Windows Media Player for some inscrutable reason.
- Download the AppxBundle file.
- You may have to right click › Save Link As because the URL scheme is
http, nothttps, if your browser is set to enforce HTTPS-only mode. - If it tries to save as a filename that's just a GUID, you may copy the correct
.AppxBundlefilename and save it as that instead.
- You may have to right click › Save Link As because the URL scheme is
- If you have App Installer (e.g. on Windows client editions), you can double-click the AppxBundle file, then click Install.
- Otherwise, if you don't have App Installer (e.g. on Windows Server), you can install the AppxBundle using PowerShell:
Add-AppxPackage ".\Microsoft.HEVCVideoExtension_2.2.20.0_neutral_~_8wekyb3d8bbwe.AppxBundle"
- Exit and restart Windows Media Player if it was already running.
- Try to play a video that uses the H.265/HEVC codec in Windows Media Player.
- If it doesn't work, go to Help › About Windows Media Player Legacy and click Technical Support Information. Ensure
HEVCDECODER_STORE.dllappears in the Other Binaries section. - If it doesn't work, run
Get-AppxPackage Microsoft.HEVCVideoExtensionin PowerShell to see the app, which should haveStatusset toOK. Note that the app name is notMicrosoft.HEVCVideoExtensions(plural), the $0.99 app not from device manufacturers, which is broken in WMP. IfMicrosoft.HEVCVideoExtensionsis installed, you may want to uninstall it.
If you want to check the integrity of that package, appxbundle: rightclick properties, there is a tab with the Digital Signature, should be signed by Microsoft, Certificate Path to Microsoft Root CA Cert (their official certificate thumbprints are listed here https://www.microsoft.com/pkiops/docs/repository.htm).
On my PC the appxbundle file did not install, but extracting the correct appx file (for my CPU it was Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.x64.appx) using 7zip, I could successfully install it via powershell command:
Add-AppxPackage -Path Microsoft.HEVCVideoExtension_8wekyb3d8bbwe.x64.appx