How to Turn Off Windows Defender in Windows 10

If you’re running a third-party antivirus app, it’s a good idea to make sure the built-in Windows Defender is disabled.

If you're looking for a permanent solution to disable Windows Defender, Here’s how to do it.

While it’s handy being able to enable and disable Windows Defender, please do make sure that you’re still running a good antivirus app. Many people will tell you that you can go without antivirus if you’re careful, and that just isn’t true. If you really hate antivirus, Windows Defender is the least intrusive program you can use—so you should probably leave it on.