Intel has removed support for SGX (software guard extension) in 12th Generation Intel Core 11000 and 12000 processors, rendering modern PCs unable to playback Blu-ray disks in 4K resolution.

This technical problem arises from the fact that Blu-ray disks require Digital Rights Management (DRM), which needs the presence of SGX to work.

This is a feature that Intel introduced in the Skylake generation back in 2016, enabling PCs to play protected Blu-ray disks for the first time.

As seen in Intel's current datasheets for the 11th and 12th generation of its Core desktop processors, the SGX is listed as a deprecated technology, so it's no longer available.

Intel's datasheet for 12th gen CPUs

Intel's datasheet for 12th gen CPUs
 
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