We just posted an article on Komando.com about this update:
“Microsoft released update KB4515384 in response to user reports of CPU activity spiking unnecessarily on Windows 10 computers, which created significant slowdowns and unexpected behavior. The patch, however, managed to break several of the most commonly used features in Windows 10 and caused an uproar online over Microsoft’s poor quality control.”
Keep reading on Komando.com: https://www.komando.com/happening-now/596553/latest-windows-10-update-may-be-the-worst-yet-heres-why