I am also a years long customer for G Data Interney Security, I can't keep on using it daily because of same problems mentioned by Lock, so I kinda feel like I have rights to express my opinion as well. I sometimes like to bite him, but he's right about G Data on this one, can't foolishly ignore that and tell everything is top notch when customer feedback and advices given where product could improve are gnored. I also have spent many hours collecting logs and sending them without an further answer, didn't even got a simple thanks, so my guess is reported bugs doesn't even reach devs. This discussion goes even years ago of reported problems which aren't fixed in todays version. I understand that we defend products we like personally and have spent our hard earned money for, but gotta accept simple fact that it's normal for software to have bugs, but not normal that security company is having difficulties to communicate back with customers and actually listen what people have to say.
I think they do not make a lot of money from home user products so they don't devote resources to fixes. No beta program, no forum, no response from development ever... suggests to me that is the case.
Use CylancePROTECT (not SmartAV). Less problems & headache.