In this tutorial I will show you way how to install Windows 7 from USB drive. Before follow this tutorial, make sure you have at least a 4GB USB flash drive, Windows 7 installation DVD and WinToFlash software. why do I use this software, because this software is very easy to use and simple (no instalation require). WinToFlash software will help you to install windows from flash. something else need you check in your computer is your PC support boot-up from USB drive or not. you can see this option in computer bios.
Installing windows 7 from USB drive have some advantages are you don’t need to worry if the DVD drive cannot read the disc if there is any scratches on the Windows 7 installation DVD, it is more convenient to carry around your USB flash drive rather than a DVD disc, you still able to install Windows 7 Althought the PC doesn’t even have a CD/DVD drive.