"If after installing the September 2019 update the Start menu and search aren't working, you can try this workaround to mitigate the problem until it's fixed."
Full read:
https://www.windowscentral.com/how-fix-start-menu-and-search-after-installing-kb4515384-windows-10
Comment:
Basically, instructions on how to uninstall this update are given. Applies if you are having problems with the Start Menu or Search since yesterday's updates.
@joe53 - So it really does pay to hold off on these updates for a while... 😉
My Win 10 lappy hasn't been updated this month. So aside from holding off longer, is there any way to know if a system will have these problems with that KB before installing it? Or just a roll of the dice...?
No way that I know of.
Part of the problem is that this update glitch (like most update glitches) doesn't affect every user.