I have upgraded three computers to IE 11 and cannot get Flash to work on any. It did work on one machine running WIndows 7, 32 bit until Flash updated and then it acted like the other two. Two of the machines are WIndows 7 64 bit and are actively used. It never played videos on either. Videos tell me I need the Flash player. I follow the link and install it. The page verifies the install. I still cannot see embeded Flash videos like on Yahoo News.
When I try to check in Manage Add Ons, Flash nor any other Adobe product shows up. Whe I do a verify with your tool it says it is working. The only solution I have found so far is to return to IE 10.