Blocker Blockers

Where can I find information about virus blockers?
Where can I find out about or do you know anything about virus blocking companies creating their own viruses that only their program can fight so you have to buy their blocker? And don’t say its a conspiracy theory, its happened to me.
Do you mean the messages which start coming up and saying you are infected and instructing you to click and go to their website?
That’s happened to me and I had to reinstall the operating system. The other day I just did the same for someone else.
It’s true.
It’s sometimes called AntiVir and AntiVircat
You can google those words to find plenty of information to how to deal with it.
If your system is infected with that sometimes MalWareBytes takes it out but that didn’t do it for me.
Blu Blockers Commercial