Seems, this update full of problems
1.Avast randomly disable with red cross "you are not protected" message,
need to open avast user interface which hangs for sometimes before it fully open and it will enable the protection back itself
2.my laptop boot a lot slower after I install this update
3.windows defender security center now showing red cross randomly and ask to restart protection which actually activating windows defender, which will hang the laptop for a few second, than windows defender will goes active for a second before goes off again and get's replace with the "usual normal message" : status unavailable, open avast antivirus for information.
uninstall and re-install with same result, so uninstalling and replacing with Kaspersky free for the time being till there a new version release or a fix release
Asuspro B9440UA
Avast Free
Windows 10 pro x64 (version : 1709)