Best way to fight hackers

Hackers usually try to take over your computer in the background. They usually don't want to do anything to you personally, what they want to do is "zombie" your computer so they can use it to attack their targets. So what's the best way to fight hackers? Turn your computer off when your not using it! Every minute your computer is on is a minute you could be getting hacked, and if your already hacked, it's a minute the hacker has to manipulate your computer. So turn off your computer!