how to switch to my flash drive directory in cmd

// Open the command line (CMD)
-------------------------------

// Type in the name of the dirve followed by a colon, like this
C:\Users\John Doe> E:
E:\>               	<<= result.

// Type "dir" to see a list of the files in your USB/FLASH-DRIVE, like this:
E:\> dir

// Now you can access any file or directory in the USB