After December 2020, you will no longer receive “Security Update for Adobe Flash Player”
Beginning in January 2021, Adobe Flash Player will be disabled by default and all versions older than KB4561600 released in June 2020 will be blocked. Downloadable resources related to Adobe Flash Player that are hosted on Microsoft websites will no longer be available.
An update titled “Update for Removal of Adobe Flash Player” will be made available via Microsoft Update Catalog, Windows Update and WSUS that permanently removes Adobe Flash Player as a component of the Windows OS devices. If you wish to remove Adobe Flash Player from your systems ahead of the end of support, this will be available for download on the Microsoft Update Catalog in the Fall of 2020.
The update will be made optional on Windows Update and WSUS in early 2021 and will be made recommended a few months later. It should be noted that this update will be permanent and cannot be un-installed.