OK, in Windows7, open Control Panel, select Programs...there, you will see a choice to turn Windows Features on/off. One of these features is your current Version of IE. You simply uncheck the box. A screen pops up, and says this may take several minutes. When finished, you reboot your Comp, and IE is gone. It is still a Program, but it stops eating CPU usage, and Memory. On an older comp like mine, resources are limited. So now, I once again have three Browsers installed...ugh.
As for Firefox. When I Downloaded and installed Raging Bull, you see above what happened when the Slot loaded. A Black Box, and that stupid "get Adobe Flash" button. Clicking the button did nothing. Upgrading Adobe Flash did nothing. Installing Chrome, updating Flash...uninstalling The Casino, removing all of it from my comp, Downloading then reinstalling from Chrome did nothing.
I truly wish someone could tell me why, neither Firefox, nor Chrome worked. I imagine it is some simple option I have set up wrong, but I'm too stupid to figure out which one.
Oh, simply checking the IE button in the on/off Windows Features thing...ended up being a 3-4 hour nightmare. I highly recommend that unless you are a Techie, NO ONE should do as I did!!!