Requirements:
- A Thumb Drive with 4+ GB of space
- Windows 8.1 iso
- A computer that can format NTFS
- Patience
The first thing we need to do format the thumb drive to NTFS. In Windows you can do this by right clicking on your drive in Explorer click format and then click NTFS under “File system” then click format.
Once it is formatted you need to find the Windows 8.1 iso and mount it with your favorite iso mounter. Once mounted just copy all the contents of the iso to your thumb drive.
Congratulations, you now have a bootable Windows 8.1 thumb drive.