Windows Server 2022 – Windows Server Backup job fails with VSS writer error – Fix & Prevention

📖 ~1 min read

Table of contents

1. Symptom & Impact
2. Environment & Reproduction
3. Root Cause Analysis
4. Quick Triage
5. Step-by-Step Diagnosis
6. Solution – Primary Fix
7. Solution – Alternative Approaches
8. Verification & Acceptance Criteria
9. Rollback Plan
10. Prevention & Hardening
11. Related Errors & Cross-Refs
12. References & Further Reading

Symptom & Impact

Scheduled backups fail, increasing recovery point risk and compliance exposure.

Environment & Reproduction

Typically appears after patching, storage filter updates, or volume pressure.

Get-Service wbengine,VSS
wbadmin get versions
vssadmin list writers

Root Cause Analysis

One or more VSS writers remain in failed state due to service or application-level snapshot problems.

Quick Triage

Identify failed writers and recent backup error codes.

vssadmin list writers
Get-WinEvent -LogName Application -MaxEvents 40
Get-WinEvent -LogName System -MaxEvents 30

Step-by-Step Diagnosis

Map failed writer to owning service and verify volume shadow storage.

vssadmin list shadowstorage
Get-Service | Where-Object Status -ne 'Running'
wbadmin get status

Solution – Primary Fix

Restart impacted services and re-run backup with clean VSS state.

Restart-Service VSS -Force
Restart-Service wbengine -Force
wbadmin start backup -backupTarget:E: -include:C: -quiet

Solution – Alternative Approaches

Increase shadow storage allocation and split backup scope by volume.

vssadmin resize shadowstorage /for=C: /on=C: /maxsize=20%
wbadmin start backup -backupTarget:E: -include:D: -quiet

Verification & Acceptance Criteria

Writers are stable and backup job completes without errors.

vssadmin list writers
wbadmin get versions
Get-WinEvent -LogName Application -MaxEvents 10

Rollback Plan

Revert backup schedule or target if new configuration causes throughput issues.

wbadmin disable backup
wbadmin enable backup -addtarget:E: -schedule:21:00 -include:C:

Prevention & Hardening

Monitor VSS writer health and enforce backup verification checks.

vssadmin list writers > vss-writers-baseline.txt
wbadmin get versions

Related Errors & Cross-Refs

Often linked with low free space, SQL/Exchange writer instability, and antivirus filter contention.

Related tutorial: View the step-by-step tutorial for Windows Server 2022.

View all Windows Server 2022 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

Microsoft Learn: Windows Server Backup and VSS writer troubleshooting guidance.