My wd elements isnt regonized i my computer

while running  it makes a sound like a beep inside the hard disk

when ever i connect it is not regonised

its new one i brought this before 3 months only

Have you tried using another USB cable? Also try running a DLG test to rule out any possible hardware damage. 

How to test a drive for problems using Data Lifeguard Diagnostics for Windows

How to tell if the noise or sound the drive is making is normal