HRESULT 0x80042564 (VDS_E_INVALID_PARTITION

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The partition-style value is outside the MBR/GPT styles accepted by this VDS operation.

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VDS_E_INVALID_PARTITION_LAYOUT	VDS_E_INVALID_PARTITION_TYPE

VDS_E_INVALID_PARTITION_STYLE

VDS defines partition style as an enumeration with UNKNOWN, MBR, and GPT states. Configuration methods that require an initialized partition table generally accept MBR or GPT, while UNKNOWN represents an uninitialized or newly cleaned disk. This HRESULT means the supplied or discovered style is not valid for the requested operation.

Why this state matters

Do not cast arbitrary disk-management values into VDS_PARTITION_STYLE. Microsoft also warns that future enumeration values can appear, so clients should handle unknown constants gracefully rather than treating every non-MBR value as GPT. Log the raw numeric style and the operation before deciding whether initialization or conversion is appropriate.

Diagnostic focus

Log the raw VDS_PARTITION_STYLE value without normalizing it to a boolean MBR/GPT flag.
Check whether the disk is legitimately uninitialized after a clean operation.
Verify the requested method requires an initialized MBR or GPT disk.
Design the caller to reject or explicitly handle unrecognized future style values.

Technical references

VDS_PARTITION_STYLE · IVdsDisk::ConvertStyle · IVdsAdvancedDisk::Clean · VDS_PARTITION_PROP · MS-VDS error codes

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