To speed up study, for other responders... the message isn't service.exe, it's AGSService.exe. I think the message says it has crashed (but I do not read Greek so I may be wrong). I hope someone recognises this problem.
What OS and version are you running? What is your configuration? What programs did you install?
AGSService is called "Adobe Genuine Software Service", so it is checking if the Adobe software installed is licenced. I have two of such processes.
It may be that you have multiple versions of this program installed (from prior installations... ?). I recommend uninstalling everything from Adobe, running the Adobe CC Cleaner program to clean-up all leftovers, and then to install CC again.
(I'm moving this to the installation forum)
ABAMBO | Hard- and Software Engineer | Photographer