It could be possible that you have disabled the flash player.
Follow following steps:
1) Open Edge Browser
2) Click on Menu . It is located at the right end of the menu bar. Click the More actions menu and choose Settings.
3) Click the More actions menu and choose Settings.
4) Scroll down the Settings menu until you see the Advanced settings section. Click the View advanced settings button.
5) In Advanced settings, scroll down to Use Adobe Flash Player. Slide the dot from left to right to turn Adobe Flash Player to the On position.
If that doesnt solves your problem i would need some more information:
Also attach a snapshot
The specified item was not found.
Still no success. The steps you gave I had already done. I'm running
Windows 10. Using Microsoft Edge. The error I'm getting says flash is not
installed. I'm not sure what else to do.
On Tue, Sep 22, 2015 at 8:03 AM, Vivek Negi <email@example.com>
Edge comes with flash player embedded in it. Flash Player is updated with Windows update. Try updating your windows and check that if it helps.