I'll post those results so we can take a look at them. However, I do have a some third party software installed, like The Unarchiver, f.lux, and some few others, so I don't mind testing out your suggestions, and thanks for your help, I'll take advantage of your willingness to send a helping hand my way.

Ironically, Etrecheck is also a third party software not directly available from the macOS App Store. No personal information is in the report.' You mention the following, 'It is possible that you have installed thirty party software that is causing the conflicts you could download this, installed you can run it to generate a report of your Mac, you can post the results back here and we can have a look and see if there is anything that could be causing your problems. Is macOS Sierra 10.12.5 Combo Update and macOS Sierra 10.12.5 the regular update the same? Or are they two different updates? I already have macOS Sierra 10.12.5 update installed, and after that install my mac mini went whack. On the contrary, there's plenty of people experiencing the same problems with their Logitech mice, which are not working properly on macOS Sierra. But in terms of the macOS Sierra installed in my mac mini, late 2012 model, well that's another story. Honestly, I don't think I'm having problems of my own, with the exception of the tinnitus I just got due an idiot yelling directly into my ear.