The document provides step-by-step instructions for installing Windows 7 on a personal computer. It outlines 21 steps, beginning with entering the computer's BIOS to select the DVD drive for booting, inserting the Windows 7 installation DVD, selecting language and keyboard preferences, choosing an installation type (upgrade or custom), selecting the drive to install to, and completing the installation process which includes setting up a user account, password, product key, Windows update settings, and network location if connected to a network.