A browser hi-jacker is something that a user installs mostly by accident. Something that a regular AV cannot stop. That's the best solution you did there. Sometimes it takes a lot more time to try to...

That's because I think MS is manipulating defender so they can access our W10 computers. But it doesn't matter. I don't use W10 for sensitive tasks.

Be aware that a lot of people who used third party anti-virus had problems running any anti-virus after the upgrade to build 9860. Even the native Windows Defender was broken and unusable.

Since...

Everything you said is true jimbo. But not everybody is probably on the same level of your computer expertise. SAS and MBAM are second layer of protection in case someone missed anything you...

The opposite here. I have both the pro version of SAS and MBAM but the latter don't pick up anything most of the time. Either MBAM isn't that good or I am doing the right thing whenever I am online....

Windows Defender AV is enabled by default. Just stay with it for now. Just do regular scans with either SuperAntispyware or MalwareBytes and you're good.