Requirements: *USB Flash Drive (Minimum 4GB) *Windows 7 or Windows 8 installation files. Follow the below steps to create bootable Windows 7/Windows 8 USB drive using which you can install Windows 7 or Windows 8 easily. Steps: 1 . Plug-in your USB flash drive to USB port and move all the contents from USB drive to a safe location on your system. 2 . Open Command Prompt with admin rights. Use any of the below methods to open Command Prompt with admin rights. *Type cmd in Start menu search box and hit Ctrl + Shift + Enter . Or *Go to Start menu > All programs > Accessories, right click on Command Prompt and select Run as administrator. 3 . You need to know about the USB drive a little bit. Type in the following commands in the command prompt: First type DISKPART and hit enter to see the below message. Next type LIST DISK command and note down the Disk number (ex: Disk 1) of your USB flash drive. In the below screenshot my Flash Drive Disk no is Di