Get Context Help in Powerpoint 2010
Despite getting a good grasp of the program, we may need help on different aspects from time to time. To aid in such scenarios, PowerPoint has created the context help feature. With this feature, if you get stuck in any dialog, you can press F1 and PowerPoint will open the help topic related to that dialog. This is extremely beneficial as you need not spend time trying to browse through all the help topics just to get to the one you need.
The context help is based on the active window and not on the object you have selected. So if you select an image and press F1, you will get the generic help windows as your active window is still the main PowerPoint program.
If you selected any other dialog or window, PowerPoint context help will show the related help topic when you press F1. In other words, if you continue work solely from the ribbon options, the context help would not work, but if you right click on the shapes or objects and open related editing dialogs, you can press F1 to learn more about related functionalities.