Then select Edit group policy from the listed results. Turn on Microsoft Defender AntivirusĬomplete the following steps to turn on Microsoft Defender Antivirus on your device. This article describe how to update your device settings to meet your organization's antivirus requirements and resolve access problems. Microsoft Defender Antivirus is an antivirus software that's included in Windows and can help protect your device from viruses, malware, and other threats. Organizations want to ensure that devices accessing their resources are secured, so they may require you to use Microsoft Defender Antivirus and additional Windows Security features. Turn on Microsoft Defender Antivirus to access company resources