VSSControl: -2147467259 Backup job failed. Cannot collect writers metadata. VSS asynchronous operation is not completed. Operation: [Gather metadata]. Code: [0x80042318].

If, instead, the command results in a list of VSS writers, retry the Veeam backup job. If the backup job continues to fail with the same error about "Cannot collect writers metadata.", check if there are any third-party VSS providers using the command:

vssadmin list providers

For more information about issues related to the presence of third-party VSS Providers, see KB1785.

Review Event Viewer

1. Open Event Viewer on the machine that is failing to back up. (eventvwr.msc)
2. Review the Windows Logs > Application section for any errors from the Source "VSS"

The following is an example of one possible error:

Troubleshooting

Customers facing this issue have reported that the following troubleshooting options were able to resolve the issue:

• Restart the COM+ Event System and System Event Notification Service, ensure the Volume Shadow Copy service is stopped, and test the 'vssadmin list writers' command again.
• Reboot the machine that is failing to backup.
• Review these articles:
  • https://docs.microsoft.com/en-us/troubleshoot/windows-server/backup-and-storage/no-vss-writers-listed-run-vssadmin-list
  • https://docs.microsoft.com/en-US/troubleshoot/windows-server/backup-and-storage/error-0x8000ffff-run-vssadmin-list-writers-command

If the writers list persists in failing to report, assistance from Microsoft Support may be needed.