You may get a notification that it is too big for the USB device. Rufus will check the image and compare it to the available disk size. Once you have made the necessary changes click on the start button to start the process. To avoid issues, only removable drives are listed under device so that you cannot accidentally format one of the fixed drives. Make sure you have backed up important data before you proceed. All content that is on it is lost therefore. Note: The selected device will be formatted during the process. If you select a Windows installation ISO for instance, you may get the option to create a standard Windows installation disk, or setup Windows to Go. Rufus may display additional options if it identifies the image correctly. Most are fine however for most use cases, but you can change the volume label for instance, enable disk check to check for bad blocks on the USB drive, or disable quick format.Īdvanced options let you change the cluster size and file system, and the partition scheme. You may then modify other settings to your liking.