As long as I have correctly identified their German equivalent names (Windows Ereignisprotokoll, Windows Ereignissammlung, Windows Verwaltungsinstrumentation), all these three services are running, and get automatically launched.
As for registry cleaning, I use CCleaner every weekend, in its latest update. I delete temp files and cache files and also defrag every weekend. Quick Virusscans both with Avira Premium and Anti-Malware once or twice a weak, full system scans every 4-6 weeks. System has been installed just 4-5 weeks ago.
This is the "windows" section of the service list. I have deactivated some services indeed, but not without advise and also longer time before the reliability history disappeared. I tried to switch off all that I never run or need over here, especially typical business and office networking stuff. It'SX still some damn 70+ services active now.
