Flash Player has reached it's end of life. It is no longer maintained from a functional or security perspective, and we strongly recommend that you uninstall it. Like your browser and operating system, Flash Player is one of the few programs on your computer tasked with processing untrusted content from the Internet. Much of the day-to-day work on Flash Player revolved around staying ahead of the latest academic research on software security and intelligence from government and industry partners about attacks in the field.
That work is no longer happening, and it's a matter of time before exploits being to be targeted against users running unpatched versions of Flash.
We announced that Flash Player would be ending back in 2017, to give software developers and content providers plenty of time to migrate to newer technologies. Our strong recommendation would be to either find an updated version of the software you're using, or to find a replacement.
That said, you *can* use the Enterprise Enablement features to allow only the trusted content you specify to run on your computer. After Jan 12 2021, Flash Player will only load content that you have explicitly allowed.
You can find more information on using Enterprise Enablement in the Flash Player Administrator's Guide (pp. 28):
https://www.adobe.com/devnet/flashplayer/articles/flash_player_admin_guide.html
Again, it's probably easier and better to migrate to a new tool that doesn't depend on Flash.
For your convenience, here are links to the uninstallers:
Uninstall Flash Player - Windows:
https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html
Uninstall Flash Player - Mac:
https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-mac-os.html
Microsoft Update for Removal of Flash Player for IE and Edge on Windows 8 and higher
https://support.microsoft.com/en-us/help/4577586/update-for-removal-of-adobe-flash-player
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