I recently started using a Macbook Air as my full time computer, so I needed to hook up a keyboard and mouse to it. Automatically, OSX assigns the “Windows” key on the keyboard to be the “Command” key in OSX, which will drive you insane.
After doing a lot of digging, I realized there is a very easy solution to this built right into the Keyboard settings section in OSX System Preferences.
1. Go to System Preferences > Keyboard
2. Hit the “Modifier Keys” button
3. Select your USB keyboard from the drop-down menu (there should be two keyboards listed), make sure to not change the built-in keyboard settings.
4. I found that turning my keyboard’s CTRL key to the Command key made it intuitive for me to CTRL-C and CTRL-V and perform the other command options.
5. Since you do need to sometimes access the CTRL key in OSX, I made the function of the “Windows Key” (Command Key) on the external keyboard map to the CTRL key in OSX.
For reference, this is the “Windows” key on a PC keyboard:
Hope this helps!