In my opinion, USB flash drives are one of the best invention because it is fast, can be used on most computers without installing any drives and small which makes it portable. At the same time this will also allow data to be easily stolen from a computer if the owner of the PC is not on his desk. Windows does not provide an easy way for an average computer user to check if any unauthorized USB drives has been connected to the computer. For a more experienced user who are familiar with Windows registry, it is possible to analyze the USBSTOR registry keys and see if there are any unrecognized devices. I have previously written about using USBDeview to view all installed or connected USB devices on your system and if you find that the information displayed on the program is a little overwhelming, you can give USB History Viewer a try.
USB History Viewer is a portable freeware developed by IntelliAdmin which allows you to view USB flash drive history in the simplest form. All you need to do is specify the computer name that you want to check, and click the Start button. In a few seconds, all USB drives that has been connected to the computer before will be displayed at the Step 3 window. Expanding the USB device name will show the ID which is the serial number of the device, when was it last used or connected, and if it is currently mounted/connected.
The default LOCALHOST computer did not work on my Windows 7 32-bit and had to change to my own computer name in order to check for connected USB drives. If you are on a domain network, you can also check other computers by specifying the correct username, password and domain.