If you are using Windows XP or above, you may have noticed that you do not always see the underlined letter in menu or command names such as File, Edit.
One way to make them appear is to press the left hand Alt. key (usually found to the left of the space bar) Tap it again and they disappear.
To turn them on permanently, proceed as follows:
Open the Control Panel.
Select Ease of Access.
Select Make the keyboard easier to use.
Scroll to Make it easier to use keyboard shortcuts and select the checkbox labeled "Underline keyboard shortcuts and access keys."
Click OK.
