In a dialog box, right-click the option with which you want help.
Select What's This.
After you review the explanation, click outside the pop-up tip to hide the explanation.
Often when you open a dialog box, you might not know what each feature does. To help you understand all of your options, you can display context-sensitive help on any of the options. You see a pop-up explanation of the feature.
Use Help Button
If the window includes a Help button, you can click this button and then click any of the options in the dialog box to get help.