HRESULT 0x80042403 (VDS_E_ALREADY

Status / error code:

Category:

Constant name:

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Operating System:

Description:

The VDS provider is already registered, so duplicate registration cannot continue.

Could be also:
Constant	Type	OS
VSS_E_ASRERROR_NO_ARCPATH	HRESULT	Windows

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VSS_E_ASRERROR_DISK_RECREATION_FAILED	VSS_E_ASRERROR_NO_ARCPATH

VDS_E_ALREADY_REGISTERED

VDS_E_ALREADY_REGISTERED means that the provider that the request is trying to register is already known to VDS. Treat this as a configuration-state result, not as proof that the provider is healthy or ready for every operation.

What to check

Enumerate registered providers and compare the provider identity, CLSID, and registration source with the one the installer or management tool is attempting to add.
Check whether a repair or upgrade is replaying a registration step that should be idempotent.
Do not delete provider registration merely to bypass this status unless you have verified provider ownership and recovery procedures.

Microsoft: VDS common return codes

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