I had to uninstall Avast free AV because, please see message #38 and 39, it was conflicting with mbam, and the latter wouldn't proceed.
So, at the moment I'm still clean from Avast.
Hopefully
after my last message I've managed to exclude completely windows defender from sending that weird notice.
Before all the query/ topic started I was fine and running Avast free AV, using Microsoft firewall, instead of Avast firewall, with disabled Ms Defender.
The pc system has been running so smooth and reasonably fast for very long time, as much that I had mostly forgotten my untouched settings, until I have plugged in that awful Hp printer that changed most of my settings, acting like a non official virus, bringing up issues all at once and unbalancing boot time, as long as delaying windows startup.
Yes, we can disable and tweak/ tune up anything you may suggest, even though some script.
Today, when I became aware that no services were showing as running under Startup (through msconfig), I kind of felt defeated.
So, let's start again with diagnostics and suggestions.
I understand that the machine is oldish, and I also wish to elevate it to windows 10, but I fear that lag times will become unbearable. As almost every machine that's been updated to w10.