A customer attached an external drive to his notebook computer but the computer is not recognizing it. What should be considered? A. The cables are attached firmly B. The external drive has been pre¬loaded with the appropriate software C. The external drive was attached before the computer was on D. The external drive is turned on E. All of the above

The correct answer is E. All of the above.

Here are some reasons why a computer might not recognize an external drive:

• The cables are not attached firmly. Make sure that the cables are plugged in securely to both the external drive and the computer.
• The external drive has not been pre-loaded with the appropriate software. Some external drives require special software to be installed in order for the computer to recognize them. Check the manufacturer’s website for instructions on how to install the necessary software.
• The external drive was attached before the computer was on. Some computers will not recognize an external drive that is attached before the computer is turned on. Try turning on the computer first, then attaching the external drive.
• The external drive is not turned on. Make sure that the external drive is turned on. Some external drives have a power button that needs to be pressed in order for the drive to turn on.

If you have checked all of these things and the computer still does not recognize the external drive, then there may be a problem with the external drive itself. In this case, you will need to contact the manufacturer of the external drive for further assistance.