https://wccftech.com/intel-microcode-updates-released-windows-10/

New Intel microcode updates are now live for almost all the versions of Windows 10, including the latest November 2019 Update and the original version of the desktop operating system released back in 2015. These optional updates can be downloaded through the Microsoft Update Catalog.

These updates fix several security issues, and were already delivered for some CPUs. The Windows maker revised the support page last week, adding that the Intel microcode updates are now also available for the following families: