Normally people will want to do this after a computer has been re-imaged(a process which deletes all programs and resets your computer to default to clean it up).

The bottom bar that shows what programs you have open is called the Taskbar. To pin programs, the easiest way I find to do this is to:

find them in the start menu

Right click on the icon

Select Pin to taskbar.

Outlook and other Office programs can be found right when you open the start menu:

You can right click the Outlook icon here, or search for any program in the start menu just simply by starting to type:

Or right click any icon you see, and select "Pin to taskbar".

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