If you’re already running a full anti-malware suite, you might not even realize that Windows Defender is already installed with Windows, and is probably wasting precious resources. Here’s how to get rid of it.
Now, just to be clear, we’re not saying that we hate Windows Defender. Some spyware protection is better than none, and it’s built in and free! But, if you are already running something that provides great anti-malware protection, there’s no need to have more than one application running at a time.
Unfortunately, Windows Defender is completely built into Windows, and you’re not going to actually uninstall it.
Open up Windows Defender, go to Tools on the top menu, and then click on Options.
Now click on Administrator on the left-hand pane, uncheck the box for “Use this program”, and click the Save button.
And then you can change Startup type to Disabled.




