0x80042306 — VSS provider veto
Domain: BackupPriority: High
What does this error mean?
A VSS provider refused or blocked snapshot creation.
Likely causes
- A VSS provider is misconfigured
- A required service or storage component is unavailable
- A recent change left a provider in an inconsistent state
Checks and resolution
- Keep the complete error and timestamp.
- List VSS providers and writers and identify the component returning the error.
- Check related services and storage before applying a global VSS reset.
- Apply a targeted correction and retest the snapshot.
Precaution: Do not remove VSS providers or run destructive repair scripts before confirming which provider is failing.
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Troubleshoot the VSS provider veto error 0x80042306
Error 0x80042306 indicates that a Volume Shadow Copy Service provider vetoed a snapshot operation. Identify the relevant provider before modifying backup or snapshot settings.
Recommended checks
- Use vssadmin list providers to identify installed shadow copy providers.
- Use vssadmin list writers to inspect the current state of application writers.
- Correlate VSS and VolSnap events with the time of the failed backup.
- Review conflicting backup software and test reversible changes first.
Frequently asked question
Should I delete all shadow copies? No. Deleting snapshots may remove useful recovery points. Assess retention and recovery implications beforehand.