Had to look for a while to find out what may be the problem in your pic. It is the missing names in the User Name column, right? They do appear after a while?
No real idea what could cause this.
When the problem occurs I would look in services.msc if a service is listed as starting (not started) or look in event viewer if there are error messages about services that have problems starting.
I noticed a few days ago that I get the exact same problem. There are no user names attached to the image name, then after a while they appear. I keep getting the following error in the Event Viewer also:
Event Type: Warning
Event Source: Userenv
Event Category: None
Event ID: 1517
User: NT AUTHORITY\SYSTEM
Windows saved user CZARINA\Pete registry while an application or service was still using the registry during log off. The memory used by the user's registry has not been freed. The registry will be unloaded when it is no longer in use.
This is often caused by services running as a user account, try configuring the services to run in either the LocalService or NetworkService account.
I don't have the terminal services service disabled but I do have 4 other services disabled. However I have good reason to have them disabled. I think i'll put up with it, it's not really a problem, more of an annoyance.