Microsoft has released a new set of Intel microcode updates for Windows 10 20H2, 2004, 1909, and older versions to fix bugs impacting multiple Intel CPU families. Microcode updates are released by Intel after discovering bugs in their CPUs to allow OS vendors to patch the CPU behavior to address or at least partially mitigate the issues. Microsoft has also released six optional updates to fix issues impacting current and previously released Windows 10 versions. Users are advised to check if your Intel CPU is supported before installing the updates.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-releases-new-windows-10-intel-cpu-microcode-updates/