Confirmed. You'll need to enter your password to access.
2015.10.0.2208 version allowed manual update checking via right-click of avast UI in system tray with password protection set. Newest version 2015.10.2.2215 does not allow it, even tho under password settings Update is unchecked. Useful to check vps version or to manually update when resuming a session or boot to get the latest vps before going online.