- 1). Insert the Windows XP CD into your computer's CD drive. Click the "Start" button in the lower left corner of your desktop. Click the "Control Panel" button in the menu that pops up.
- 2). Double-click the "Add or Remove Programs" icon in the Control Panel window. Click the "Add/Remove Windows Components" icon on the left sidebar in the window that appears.
- 3). Double-click on "Accessories and Utilities" in the Windows Components Wizard window that pops up. Click on the "Accessories" option in the Accessories and Utilities window.
- 4). Check the empty box that appears next to Calculator in the Accessories window. Click the "OK" button at the bottom of the window. The Calculator will now be replaced, and you can access it through the Accessories folder from the Start menu.
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