It works with almost all of the USB stick brands, which means that it can be your hp USB formatter, your Kingston format utility or your SanDisk USB format utility, and other safe format applications. 17 Comments 1 Solution 21763 Views Last Modified. How to Remove CDFS from a Flash Drive Plug the flash drive into your computer's USB port. Above is a 32GB USB drive's layout after install Ventoy in it. Formatting a USB stick as CDFS won't work - this has been tried many times (including by me) and Windows simply refuses to mount the file system. A USB CD-drive is a totally different type of USB device as a USB connected (hard)disk. While cruising those threads, I am given to believe that a low level format might be what I need. How to format cdfs usb drive As long as there is no write-protection, you can easily format a USB drive.