Windows KB conflict - devices locking up on Windows login
Incident Report for Avast Business Managed Antivirus
Our engineers have resolved the issue in co-operation with Microsoft and will continue to monitor the situation. If any of your devices are affected, please refer to the following article for steps to follow:

If you are still experiencing issues after following the instructions, please contact support.
Posted 6 months ago. Apr 15, 2019 - 06:32 EDT
This incident affected: Avast Business Data Center Status (New York Data Center, Prague Data Center, Seattle Data Center, Amsterdam Data Center) and Antivirus Service.