Although you can refer to our other guides to prepare a USB drive to install Windows 7 from USB, this is the simplest method available.

Here are the five simple steps that you need to follow to create a bootable USB flash drive to install Windows 7 from USB device:

Note: You need a USB flash drive with a minimum of 4 GB of free space.

1. Download Windows 7 USB/DVD Tool and install it (download here).
   
   
2. Run the downloaded program, and carry out the installation.
   
   
3. Launch the Windows 7 USB/DVD Tool.
   
   
   
   
4. Browse to your Windows 7 ISO image using the Browse button.
   
   
   
   
5. In this step, you need to select your media type. As we are here to create a bootable USB, simply click on USB device button.
   
   
   
   
   
6. Select your USB flash drive from the drop down box and click on Begin copying button.
   
   
   
   
   
7. The Windows 7 USB/DVD tool will take a few minutes to complete the procedure.