HRESULT 0x80042571 (VDS_E_PARTITION_STYLE

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The MBR or GPT request style does not match the disk style.

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VDS_E_PARTITION_PROTECTED	VDS_E_PROVIDER_INTERNAL_ERROR

VDS_E_PARTITION_STYLE_MISMATCH

VDS uses partition style as the discriminant for several union-based structures. CREATE_PARTITION_PARAMETERS, CHANGE_ATTRIBUTES_PARAMETERS, and VDS_PARTITION_PROP interpret their MBR/GPT fields according to the selected style. This HRESULT appears when the requested style and the disk style disagree.

Why this state matters

Treat the problem as a typed-structure mismatch. Requery the disk and partition style immediately before constructing the request, especially after clean, conversion, or external imaging. Do not reuse a cached GPT parameter block after the disk was converted to MBR, or vice versa. The same numeric bytes can be interpreted as entirely different metadata in the wrong union branch.

Diagnostic focus

Requery the disk VDS_PARTITION_STYLE at the time the request is built.
Log the style value carried in the parameter structure and the style reported by the disk.
Rebuild the MBR/GPT union branch after any clean or conversion operation.
Invalidate cached partition parameter objects when a disk layout or style notification occurs.

Technical references

VDS_PARTITION_STYLE · CREATE_PARTITION_PARAMETERS · CHANGE_ATTRIBUTES_PARAMETERS · IVdsDisk::ConvertStyle · MS-VDS error codes

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