Unexpected Error: Volume Shadow Copy Service (VSS) Component Issues and Solutions

If you encounter the “Unexpected error with Volume Shadow Copy Service (VSS) component” while creating backups or restoring data in Windows, you're not alone. This error can stem from various causes and may disrupt the backup or recovery process.

Common Causes of VSS Errors

The main reasons for this error include:

  • Problems with VSS components: Corrupted files or improper functioning of the Volume Shadow Copy Service.
  • Insufficient disk space: Creating a shadow copy requires enough free space on the disk.
  • Conflicts with antivirus software: Certain antivirus programs can block access to VSS components.
  • System configuration issues: Damaged system files or incorrect settings may cause the error.

How to Fix Volume Shadow Copy Service Errors

Below are several methods to resolve the VSS error. Follow these steps to troubleshoot:

1. Restart the VSS Service

The first step is to check and restart the Volume Shadow Copy Service:

  1. Press Win + R, type services.msc, and hit Enter.
  2. Locate the “Volume Shadow Copy” service, right-click on it.
  3. Select “Restart”.

Check if the issue is resolved after restarting the service.

2. Run System File Checker (SFC)

The error could be due to corrupted system files. Use the sfc /scannow command to check and repair them:

1. Open Command Prompt as an administrator.
2. Type the command: sfc /scannow
3. Wait for the scan to complete, then restart your system.

3. Free Up Disk Space for Shadow Copies

Insufficient disk space can trigger VSS errors. Make sure you have enough free space on the drive for creating shadow copies.

4. Check VSS Status via Command Prompt

Run the vssadmin list writers command to check the status of VSS components:

vssadmin list writers

If any components show an error state, try restarting the corresponding service.

5. Disable Conflicting Software

Antivirus software and third-party backup tools may conflict with VSS. Temporarily disable such programs and try the backup operation again.