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VSS_E_NOT_SUPPORTED
VSS_E_NOT_SUPPORTED The requested VSS operation is not supported by the selected provider, operating system, storage topology, or snapshot type.
What to check
- Identify the exact provider and operation from the requester log; the generic VSS code does not say which capability is missing.
- List installed providers and compare their documented capabilities with the backup product workflow.
- Use a supported provider or backup method rather than retrying an unsupported transport, revert, or remote operation.
vssadmin list providers
Microsoft: Volume Shadow Copy Service
Microsoft: vssadmin list providers
Microsoft: VSS documentation portal
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