Redmond, we have a problem…again. For the third time in a month, Windows 10 users are reporting a recent update is messing with the functionality of the Start menu. This time it is KB4517389 that is the culprit. On affected PCs, users are seeing a critical error message when accessing the Start menu.

“KB4524147 originally caused a critical

Source: Hot Hardware – Microsoft Acknowledges Windows 10 1903 Cumulative Update Once Again Breaks Start Menu