Please see https://support.microsoft.com/en-us/help/4516041/windows-8-1-kb4516041 for news on this as of 9/24/2019!
Addresses an issue that may prevent Internet Explorer 11 from opening after installing KB4516067 on a Windows 8.1 RT device. You may have received the error, "C:\Program Files\Internet Explorer\iexplore.exe: A certificate was explicitly revoked by its issuer."
Look in the OPTIONAL area in Windows Update. It is labelled as a PREVIEW ROLLUP. Please install it to regain functionality.