Avast for Business is blocking Windows 10 upgrade download

the title says it, simply put I get Event ID 1001 and Event Name: WindowsUpdateFailure3, Response: Not available in the details in Windows event viewer. PC is Windows 8.1.

“disable shields until computer is restarted” and it immediately started the Windows 10 download for upgrade.

this is pretty dumb guys.

See: https://forum.avast.com/index.php?topic=174657.msg1240703#msg1240703