title: How to determine if drive is external drive
body: <p>How can I determine if a drive is a external drive plugged in through usb ? I checked the <a href="http://msdn.microsoft.com/en-us/library/system.io.driveinfo.drivetype.aspx" rel="noreferrer">DriveInfo.DriveType</a> but with my 1TB external drive plugged in through usb it shows up as a fixed drive.</p>
  
  <p>Thoughts ?</p>