We've been informed on the developers channel that a microfix was released by Avast an hour ago. The microfix is provided by the Avast Emergency Updater which is run automatically from task scheduler every 12 hours and a few minutes after system boot. You can get this update immediately by rebooting and waiting ~ 5 minutes, otherwise it will arrive automatically in 12 hours (max) or you can execute: schtasks.exe /Run /TN "Avast Emergency Update"