How To Install Windows 8 From USB drive

Installing Windows OS through USB drives has been possible since Windows Vista and Windows 7, so if you still have your bootable USB with you:

• In the USB drive create a New folder and move all the installation files of the previous OS in that folder.
• Extract the ISO file of the WindowsDeveloperPreview and copy that files in the root of the USB drive.

In the image above shows the copied Windows 8 files in my bootable thumb drive and the Other Files folder is where I moved the Windows 7 installation files.

If you do not have a bootable USB drive yet, you need download and install the Windows 7 USB /DVD download tool to create a Windows 8 bootable USB drive, once installed:

• Launch the Windows USB/DVD download tool application
• Browse for the Windows 8 ISO file
• Select a media type click on USB device
• Insert a USB drive then click Begin copying
• Creation of a bootable USB device will proceed

Windows 8 Installation

• Plug in the USB drive into the computer you want to install Windows 8 on.
• Turn the computer and boot it from the USB drive (make sure that the BIOS has been setup to allow the computer to boot from a USB drive).
• Installation of Windows 8 will begin