VSS error: Failed resolving account Administrator with status 1376

On my domain controllers, the following errors occurred in my eventlog:

Log Name:      Application
Source:        VSS
Event ID:      8230
Task Category: None
Level:         Warning
Computer:      DomainController1
Description:  Volume Shadow Copy Service error: Failed resolving account Administrator with status 1376.
Check connection to domain controller and VssAccessControl registry key.
Operation:   Gathering Writer Data  
Executing Asynchronous Operation Context:  
Execution Context: Requestor  
Current State: GatherWriterMetadata
Error-specific details: 
Error: NetLocalGroupGetMemebers(Administrator), 0x80070560, The specified local group does not exist.

and:

Log Name:      Application
Source:        VSS
Event ID:      8230
Task Category: None
Level:         Warning
Computer:      DomainController1
Description:   Volume Shadow Copy Service error: Failed resolving account Administrator with status 1376.
Check connection to domain controller and VssAccessControl registry key.
Error-specific details:  
Error: NetLocalGroupGetMemebers(Administrator), 0x80070560, The specified local group does not exist.

The events appeared in my eventviewer after creating backups with Tivoli Storage Manager (TSM). Although the backup procedure was running fine, the events were annoying. So here’s how to fix it:

1. Open your registry
2. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS\VssAccessControl
3. Delete the DWORD-key that corresponds to the account name in the events. In my case, it was Administrator (Failed resolving account Administrator with status 1376).