I'm running into this issue with the Adobe flash player currently. (http://i.imgur.com/qI3aqT3.png)
I am able to download the installer just fine. However once i say yes and run it as an administrator i run into the issue of the installer hanging up like so. I can not even close out the installer window without entering the task manager. I require the flash player for internet explorer for streaming purposes as xsplit requires it. It works fine in firefox, but i am also fearful to uninstall it on firefox my default browser in hopes that it's hanging up due to a flash player already being installed.
This solution does not work any more. When clicking the link, I get
The requested URL /pub/flashplayer/current/support/install_flash_player_ax.exe was not found on this server.