Click on the Start button or press the Windows key on the keyboard (This will be to the left of the space bar and will have the Windows logo on it.) to bring up the Start menu.

Then, instead of using the mouse, use the arrow keys to navigate up and down. When you come to a listing that has a small arrow pointing to the right, it means that there are more choices to the right. They will either open automatically or you can use the right arrow key to open them.

If you are frustrated by menus that disappear too quickly, using the arrow keys can give you much more control over you choices.