The document discusses how to format a PC by installing an operating system from a CD/DVD, USB drive, or hard disk drive. It provides minimum, recommended, and maximum hardware requirements for installing Windows 7 32-bit and 64-bit. The steps for booting from a CD/DVD or USB drive are outlined, which include burning an ISO image file to a disc or using USB installer software. Basic applications and settings to configure after installation are also mentioned, such as installing antivirus software, Microsoft Office, browsers, and printers.