This document provides instructions for creating a bootable Windows 7 USB drive using the basic option and tools like the USB flash drive, Windows 7 setup DVD, PowerShell, and DiskPart utility. It involves 6 steps: 1) plugging in the USB drive, 2) opening PowerShell and using DiskPart commands to clean, create a partition, and format the USB drive, 3) inserting the Windows 7 DVD and using bootsect.exe to install boot files to the USB drive, 4) copying all files from the DVD to the USB drive, 5) rebooting using the USB drive to install Windows 7.