What does HRESULT 0xC0262107 (ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNAVAILABLE) mean?

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Description:

No unswizzling aperture was available for the graphics allocation.

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ERROR_GRAPHICS_ALLOCATION_INVALID	ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNSUPPORTED

ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNAVAILABLE

ERROR_GRAPHICS_UNSWIZZLING_APERTURE_UNAVAILABLE (0xC0262107) means the graphics memory manager had no available unswizzling aperture for the operation. This is a low-level allocation-layout and resource-pressure condition.

What to check

For driver or graphics-runtime code, reduce concurrent use of resources that require the aperture and release temporary mappings promptly.
Do not assume an allocation can always be converted to the requested memory layout.
For user-facing applications, collect the driver version and workload details; this is usually not solved by changing an ordinary desktop setting.

Useful command

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

Microsoft: Display/Graphics overview

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Microsoft: Graphics error codes

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