Can't open Start menu on Windows 10 after the latest update? Here's the fix

[Windows Central]

If you can't open the Start menu after update KB4517389, use these steps to roll back to a previous build and fix the issue on Windows 10.
As part of the October 2019 Patch Tuesday update, Microsoft rolled out update KB4517389 for devices running the Windows 10 May 2019 Update (version 1903) to address several problems, including for printing, performance, and security. However, shortly after the release, a small number of users began to report that after applying the update, the Start menu stopped working.

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