okay here's a solution. defender only schedule scan your pc if it is idle. you can edit schedule time (after idle time) here Schedule tasks Task Scheduler Library > Microsoft > Windows > Windows Defender folder about real time protection, you can disable it in gui , but it auto enable itself after 4(?) hours. if you want to permanently disbale real time protection you can do that in group policy. goto group policy > computer configuration > administrative templates > windows component > defender > and set enable to turn off real time protection. let me know if there's a problem.
Ty so much I have now set defender to only do a scan if the pc has been idle for 30 mins. I think that should do it
That icon is for Windows Security Centre to review security settings, like smartscreen, etc, but MS had to add Defender's name to it for confusion. It can be useful at times.