Those keys are there for a reason.

The Function Keys (F1 to F12) on the Windows keyboard have specifically assigned roles. For example, F1 opens the help page of any application you’re currently on. This is useful in many situations.

106464: Mac OS X: Troubleshooting a Startup Issue is an updated version of this article that provides steps to follow if your computer experiences a blue screen, gray screen, kernel panic, flashing ...