Remote Desktop Service disabled but event log entries are being generated

The service Remote Desktop Services, and all other Remote Desktop XXX services, are disabled in my list of services. However, every time I start the computer, the following event is generated (usually twice, but occasionally only once):

Event ID = 17
Level = Error
Channel = Microsoft-Windows-TerminalServices-LocalSessionManager/Operational
Provider = Microsoft-Windows-TerminalServices-LocalSessionManager
Description = Remote Desktop Service start failed. The relevant status code was 0x80070422.

Why are these event log entries being generated and how do I stop them? Running Windows 8.1.