reply to Mele20
Re: Adobe Flash Player 11.3.300.257 Use the uninstaller here and follow the directions below to remove all traces of Flash:
Then here's the offline installers link:
You can find 10.3.183.20 near the bottom. It's the version I default back to when I've had issues with the last 11.2 and even 11.3. Adobe has been patching Flash 10.3 for people who supposedly can't install 11.3 or in this case are having issues with it.