SOLVED: HDR Content Not Playing

[MaxofGreatness]

That's why I mentioned in the previous thread to wipe the old driver.
The legacy OpenCL loader used by 4th Gen iGPU may block newer drivers, apparently Intel has not tested their new dGPU on these legacy platforms.

Here are the recommended steps:
1) Disable iGPU in BIOS.
2) Use DDU to erase all display drivers (there should be two at least).
3) Temporarily install 31.0.101.5085 driver until Intel pushes a new driver to fix an issue known to affect HDR transcoding. (We should be there soon)
https://drivers.softpedia.com/get/GRAPHI...-bit.shtml

I got it working. You don't need to disable the iGPU in bios as long as you disable it in the device manager. DDU is essential for it to work, and then I used a link from Techspot to get the old drivers. If someone does this in the future, make sure the version is right by customizing the install in the installer and looking at the version number.