Before guiding you through the process of how to create a Windows 8 bootable USB drive, you need to know some requirements and tips listed below:
Step 1: Plug the USB drive into a USB 3.0 or USB 2.0 port on the computer. Make sure that it is detected by your machine.
Step 3: In the pop-up window, click "Browse" button to select Windows 8 installation file (named install.wim or install.esd) which locates under \sources folder. If the program doesn’t detect it automatically, please click "Browse" to select manually. After that, click "OK" to continue.
Step 4: Click "Proceed". The program will inform you about something important. The data on this USB drive will be deleted and the partition on USB drive will be formatted as NTFS file system. To back up data, free backup software, like AOMEI Backupper Standard, is recommended. After clicking "Yes", creating Windows 8 bootable USB drive will begin.
When the task is completed, you can plug the Windows 8 bootable USB drive into any computer with any operating system at anywhere, enter BIOS setting, and change the firmware boot order to USB first and save. After that, you will boot into Windows 8. By the way, AOMEI Windows To Go Creator also supports installing Windows 8.1 on USB drive.