What does HRESULT 0xC0262108 (ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNSUPPORTED) mean?

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Description:

The graphics allocation could not be unswizzled using an aperture.

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ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNAVAILABLE	ERROR_GRAPHICS_CANT_EVICT_PINNED_ALLOCATION

ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNSUPPORTED

ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNSUPPORTED (0xC0262108) means the selected allocation does not support unswizzling through an aperture. The requested operation is incompatible with the allocation layout or backing segment.

What to check

Use a resource type and memory layout supported by the operation instead of forcing the existing allocation through an unsupported path.
For driver development, inspect the allocation flags, segment placement, and format assumptions.
For application failures, keep the driver and application versions together in the incident data because the issue is implementation-specific.

Useful command

Get-CimInstance Win32_VideoController | Select-Object Name, DriverVersion, VideoProcessor

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