To uninstall Flash Player for Windows, you will need to first download the official Adobe Flash Player Uninstaller. How to Uninstall Adobe Flash Player For Windows
After the 12th January, 2021, Flash Player will be disabled on most sites and replaced with HTML5. This effectively makes Flash Player a security risk for your device. Adobe recommends that you remove it as it will help secure your system, considering the fact that Adobe does not plan on updating Flash Player any more, or adding security patches after the 31st December 2020. You can keep Flash Player on your system if you want, and it will remain there unless you uninstall it.