Yeah sure enough, Windows 8/8.1 and IE 10/11 has its own builtin Flash player. This highly potent combination outright refuses you to download the real Adobe Flash Player from Adobe’s website. It hasn’t occured at all to Microsoft that we, the users, might need the real Adobe Flash Player for software other than IE, say Adobe Acrobat Pro. Way to go Micro$oft!
This is just another reason to stay away from Microsoft and their “Microsoft Window 8/8.1”, note singular form, as the new Metro interface is limited to displaying just one window at the time. Simply use IE 10/11 to download your favorite web browser and then use that browser to download the latest Adobe Flash Player using these links: ActiveX vs non-ActiveX.