Volume Shadow Copy Service: Writers does not have enough privileges to create Shadow Copy

This event indicates that the writer user account has not been assigned the appropriate privileges. Volume Shadow Copy Service can interact with writers running under the Local System account, local Administrators or local Backup Operators accounts. It can also interact with writers not running under one of those accounts if the account is added to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS\VssAccessControl.

Cause

The causes for this event are:

• The writer is not running under the Local System user account.
• The writer is not running under an account that is a member of the local Administrators or Backup Operators group.
• The writer account is not listed under the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS\VssAccessControl.

Do one of the following:

• Run the writer under the Local System account.
• Run the writer under an account that is a member of the local Administrators or Backup Operators group.
• Add the writer user account to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS\VssAccessControlCaution: Incorrectly editing the registry may severely damage your system. Before making changes to the registry, you should back up any valued data on the computer.