Update to 5.0.6.3 wanted me to close my WLAN-Drivers and Applications

I was really confused when a dialog came up that showed PIDs (how is a standard user to know what those numbers are supposed to mean?) referring to my running wlan drivers… in good old fashioned insanity i tried 2 more times and it eventually finished without me having to shut down my wlan.

Can anyone tell me what is going on there?