When you start your computer, in the first screen you see, where it will probably say HP in big letters, look in the corners. It tells you a button to press to enter the BIOS. This is the screen where all the base working perameters of the computer are set.
Now, dont change anything to do with voltages or frequencies unless you (think, like me xD) that you know what you are doing.
Just check all the Tabs to see where the USB drives are listed.
