Hint: Rufus is the preferred tool to create a bootable GPT partitioned and NTFS formatted USB drive if the install.wim is larger than 4 GB. The program does not need to be installed, it can be executed simply. Rufus can be downloaded directly from the developer's website. Rufus is an open source program licensed under the GPL. The first method mentioned in this article is to create a bootable flash drive with Rufus. 3.2 Copy Windows installation files to the USB flash drive.2 2nd Method: Windows USB/DVD Download Tool.