Hey there, Littlelady1.
Sorry to hear about the issues you're having with your drive. Is there any indication that the HDD is working when you connect it - do you hear it spin-up or vibrate? Do you hear any unusual sounds/noises coming from the drive? Have you had any issues with it before, e.g. slow transfer speed, freezes, etc.? Do you want to recover data from it?
First I'd recommend that you open Disk Management to see if the HDD is recognized there and if it is - try to assign it a new letter in order to see if shows up in Windows Explorer ("Computer"). Here's how to do that:
How to change the drive letter assignment in Windows 8, 7, Vista, XP or 2000
If that doesn't help, I'd suggest that you try the drive with a different USB cable (shorter than 12") and a different computer/device to see if it's properly recognized. You could also test it with different USB ports if possible - 2.0 and 3.0
If nothing seems to work and you don't need any data recovered, I'd recommend that you download DLG (Data Lifeguard Diagnostic) and run both tests (Quick and Extended) to see if any errors or bad sectors pop-up.
Here's how to test your drive with DLG:
How to test a drive for problems using Data Lifeguard Diagnostics for Windows - the guide also contains a download link for DLG.
Hope that helps. Please let me know how everything goes.
Boogieman_WD
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