Out of the hundreds of machines I've fixed, only a few have been the "HEY BUY THIS!" scareware variety. Most of them are either "we're gunna see how badly we can fuck your machine up before you reformat" or "hey, pal, I'm just gunna hide here in the shadows and try to remain undetected for as long as possible while I pass on your personal information to our skilled team of thieves, mkay?" kinds of malware.
Sounds pretty vague and general to me. Have you ever actually done the things you say or are you just one of those people who runs Malwarebytes once and thinks that they know what the score is? Hundreds of machines? Ahh yes, another internet tech guy. Also my earlier point was that you were acting creepy and should probably stop while you're behind.
Playing: Fallout 4, Warhammer Vermintide Watching: Ash vs Evil Dead