Update KB4464547 Crashes Skype at Login
The update KB4464547 causes Skype for Business to crash. Uninstalling the update, reverts Skype back to working order. The comment here seems to indicate there's a fault in mshtml.dll https://guybachar.net/2019/05/07/microsoft-releases-may-7-2019-update-for-skype-for-business-2015-lync-2013-kb4464547/
