I added the components for Windows BASH in the control panel. It seemed to go fine, did it's download/install thing, no errors. I rebooted. Now, however, I don't see any way to start BASH. Doing a search comes up empty. I don't see any new icons in the menu. Coming up empty with web searches too, so presumably it should be obvious. Where is it supposed to show up for me to start it?
Open a command prompt window, and type in
Bash. This should start it up providing you have enabled the options for it in control panel (sounds like you have).