Sounds like you're referring to the Flash Player Microsoft embeds in IE/Edge browsers. Thesre are managed by Microsoft and Adobe's Flash Player uninstaller will not remove them (nor Chrome's embedded Flash Player).
To remove Flash Player embedded in IE/Edge, run Microsoft's Update to remove Flash Player,
https://support.microsoft.com/en-us/help/4577586/update-for-removal-of-adobe-flash-player. Please read through this document carefully before doing anything. This support page has a link to the Microsoft Update Catalog, which contains 43 different files for the different Windows versions and architecture. Make sure you download the correct file for your Windows version and architecture. If you experience issues with this update, please contact Microsoft or assistance as it’s their update, not Adobe’s.