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VDS_E_VDISK_PATHNAME_INVALID
This HRESULT is an input-path contract failure for VDS virtual-disk operations. The virtual disk properties model stores pPath as the name and directory path of the backing file. VDS requires a fully qualified pathname when a caller identifies a virtual disk file; a relative name depends on process working-directory state and is not accepted as stable storage identity.
Why this state matters
The error is not evidence that the VHD or VHDX file is corrupt. Path syntax and file contents are different validation stages. A management layer that accepts relative configuration values should resolve them to an absolute Windows path before calling the VDS virtual-disk provider and should preserve the final resolved path in diagnostics.
Diagnostic focus
- Log the exact pathname after environment-variable expansion and application-specific normalization.
- Use an absolute Windows path that identifies the backing file rather than a working-directory-relative value.
- Distinguish pathname rejection from access denied, file-not-found, or virtual-disk-format errors returned after a valid path is opened.
- When the path comes from configuration, record both the configured value and the resolved value so service working-directory differences are visible.
Technical references
VDS_VDISK_PROPERTIES · IVdsVDisk · IVdsVDisk::Open · VDS common return codes · MS-VDS error codes
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