Why does windows defender turn off

As a security practitioner, you might want to check several of these settings and a few other items i. Another solution is to run the following command from PowerShell — make sure to Run As Administrator. People report that sometimes the first one works, sometimes the second, sometimes both. Best to delete both to be sure. It is possible that attackers turned off Windows Defender by some other means and not from direct tampering with computer settings.

You may have to investigate further to get everything back up and running. Malware can turn off Defender and keep it off despite your best efforts to re-enable it. Install and run another malware detector of your choice and see if you can find and remove the infection. If none of the other solutions work, make sure if you have another anti-virus application installed that it works with Windows Defender.

Some EDR solutions do. Turning off Microsoft Defender Firewall could make your device and network, if you have one more vulnerable to unauthorized access. If there's an app you need to use that's being blocked, you can allow it through the firewall, instead of turning the firewall off.

Note: If you get errors, or if the setting won't turn on, you can use the troubleshooter and then try again. What is a Firewall? Microsoft Defender Windows 10 More Need more help?

Expand your skills. Get new features first. Was this information helpful? Yes No. Thank you! What can I do? It's possible that your anti-virus program is not registering itself in the Windows Security Center. Try to contact the anti-virus company for support.

Not Helpful 0 Helpful 6. Include your email address to get a message when this question is answered. Installing a third-party antivirus i.

This is done in case your security program is deactivated for any reason and you will not be without protection. Helpful 0 Not Helpful 0. Disabling Microsoft Defender may also disable any other antivirus programs, such as Norton or McAfee. Helpful 1 Not Helpful 0. Disabling Microsoft Defender may open your computer up to security threats. You should not do this unless you know what you are doing. Related wikiHows How to. How to. About This Article.

Written by:. Co-authors: Updated: September 15, Categories: Windows 10 Computer Virus Protection. Article Summary X 1.

Italiano: Disattivare Windows Defender su Windows Nederlands: Windows Defender uitschakelen in Windows Deutsch: In Windows 10 Windows Defender abschalten. Thanks to all authors for creating a page that has been read 1,, times. Rated this article:.