What are good ways to protect your computer

Some good way to protect your computer is never save passwords on your computer because if u do that and someone gets into your computer and can steal all your information. I would but a virus protected on the computer so when there is a virus it will notify you right away. Never keep the important stuff like bank accounts or credit card websites logged in someone can measly steal you information. There might well of there is a website u go to and it says u have to call the number to get the website unlocked don't do it because it a scame and people are trying to get into your computer to access your private files and try to Stell your information.