To turn Microsoft Defender Firewall on or off:
- Select the Start button > Settings > Update & Security > Windows Security and then Firewall & network protection. Open Windows Security settings.
- Select a network profile.
- Under Microsoft Defender Firewall, switch the setting to On. ...
- To turn it off, switch the setting to Off.
How do I turn Windows Defender on?
To turn on Windows Defender:
- Navigate to Control Panel and then double click on "Windows Defender".
- In the resulting Windows Defender information window the user is informed that Defender is turned off. Click on the link entitled: click here to turn it on.
- Close all windows and restart the computer.
Can I turn off Windows Defender antivirus?
Search for Windows Security and click the top result to open the app. Click on Virus & threat protection. Under the "Virus & threat protection settings" section, click the Manage settings option. Turn off the Real-time protection toggle switch to disable Microsoft Defender temporarily on Windows 10.
