So the point is just avoid cracked software completely, always download an app directly from its source. And use an AdBlock on your browser, it's not just blocking ads but also block other dangerous scripts. There is a 97% chance you get redirected to false software when you try to download it from a shady site. You can get viruses, ransomware, or rat, etc.
I think windows defender is more than enough to protect your pc though, as long you don't go to some shady site and try to download everything you see there. And make sure that your windows defender up to date, they asking an update for a reason.
One more thing ... you shouldn't connect your device into a public wi-fi or any other public connection especially the one with no authentication to get in the network! Bad guy waiting there to access everything in your device once you did connected in, love your coins! In the end everything is back to you where you have to becareful all the time.
Imagine you have all the necessary software installed in your devices and one mistake ruined it all .