HDR is available on windows 10.Installed Tidal, Roon, Spotify, ITunes and Amazon Music. All apps working fine. My old ears can't detect improvement in quality yet but I have not listened much.
On a side note, there is a HDR option for display. Wonder what that does.
Edit: Ok, enabling HDR plays HDR content in youtube etc in HDR. This was not available in Win 10. Looks great.
HDR settings in Windows - Microsoft Support
Learn how to control HDR settings in Windows, turn on HDR, and troubleshoot common problems with HDR-capable displays.
