I have a DVD with lessons from school . It haves inside hundreds of videos .flv and 2 execs which one is called gd.exe and the other one install_flash_player.exe , when i try to open it the screen of the player is a grey screen. I use windows 10 and

Thank u very much but unfortunately did not help. The file install ax cannot exec because Windows 10 says its already in the browser. I did install the other flash players , put the option unblock. But the  dvd is still the same. It opens with grey screen. Its supposed to to show the words to access to the menu of the dvd  and nothing. I think the problem is with  Windows 10