Click on Device and choose the USB you want to use from the drop-down menu. Step 2 : Rufus will automatically detect your USB. Step 1 : Open up Rufus and plug your clean USB stick into your computer. Once you’ve got these ready, just follow these steps to make your own bootable USB: A spare USB stick (an 8GB USB should be plenty for Windows 10 but make sure you have one that’s large enough for the ISO you’re using).The latest version of Rufus (available online from ).To create a bootable USB using Rufus, all you need is: Rufus is one of several programs that allow you to create an “ISO image” on a USB stick. This can be useful if you ever need to recover, repair or install an operating system on your computer. By running the bootable USB however, you can boot up your computer using the USB’s ISO image instead. Normally, whenever you start up your computer, it boots from the operating system stored on your internal hard drive. This could, for example, be a Windows installation CD. A “ bootable USB” is a regular USB storage device (like a USB stick or external hard drive) that has an “ISO image” of an operating system saved on it.Īn ISO image is an archive file that contains all the information found on an optical disc, such as a CD or DVD.