one drive

TrueCrypt is a software system for establishing and maintaining an on-the-fly-encrypted drive.

Scan your Registry and hard drive for spyware.

Determine your SSD drive's performance by conducting several specific tests

Finds the largest 100 files on your hard drive

NTFS Drive Scanning, Finding Deleted Files to estimate Data Recovery chances

Backup data to any drive including flash drives, and portable hard drives.

Scan your hard drive for read errors.

An utitlity helps defend a computer from viruses, which can hide in flash drive.

Smart Card Emulator. It is possible to use usb flash drive as Smart Card.

Allows you to manipulate a drive's master boot record (MBR) via the command line