How do you make a octagon on Microsoft logo?

To create an octagon in Microsoft Word or PowerPoint, go to the "Insert" tab and select "Shapes." From the Shapes menu, choose the "Polygon" option, then click on the canvas to create points for the octagon, or directly select the "Regular Polygon" shape if available. If using the Polygon tool, click to create eight equal-length sides, closing the shape by connecting back to the starting point. You can also adjust the shape’s size and color using the formatting options.