Format USB flash drive not recognized by Windows. Some of the USB sticks that were used in the tests are: Compact Flash, SDCard, CF Card II, Memory Stick Duo Pro, SDHC, SDXC, Flash Drive, Thumb Drive, Pen Drive) of the following brands, SanDisk, Kingston, HP, PNY, Silicon Power, Transcend, Samsung, Verbatim, Lexar, Corsair, Toshiba, Sony, LaCie, Teclast, ADATA, Eaget, Patriot. The software application has been tested on many storage device units for safety and stability. USB Drive Format Tool is a tiny freeware utility designed for formatting any USB storage devices (USB Flash drive, USB stick, USB pen drive, USB portable drive, and SDCard) in FAT, FAT32, exFAT, and NTFS file systems.