Avira Antivirus Pro 2019 Patch
Why April 2019 updates freeze Windows or cause these similar Windows issues? According to support articles from Microsoft, Sophos, Avast and Avira, there is a conflict between the latest April 2019 Patch updates and antivirus software such as Sophos Endpoint Protection, Avast for Business and CloudCare, Avira antivirus, ArcaBit, and AVG Business Edition.
Avira Antivirus Pro 2019 patch
(2) On Windows Server 2019, Windows Server, version 1803 or newer, Windows Server 2016, or Windows Server 2012 R2, Microsoft Defender Antivirus doesn't enter passive mode automatically when you install a non-Microsoft antivirus product. In those cases, set Microsoft Defender Antivirus to passive mode to prevent problems caused by having multiple antivirus products installed on a server. You can set Microsoft Defender Antivirus to passive mode using a registry key as follows:
(3) On Windows Server 2016, Windows Server 2012 R2, Windows Server version 1803 or newer, Windows Server 2019, and Windows Server 2022, if you are using a non-Microsoft antivirus product on an endpoint that is not onboarded to Microsoft Defender for Endpoint, disable/uninstall Microsoft Defender Antivirus manually to prevent problems caused by having multiple antivirus products installed on a server.