i have braught a hard drive usb 2.0 of 500 GB but every time i plug it to my laptop,it recognizes that some hardware is connected but it doesn't show it in my computer.
please giv eme solution for this problem...
You probably need to assign it a letter in Disk Management under Administrative Tools->Computer Managment.
It's possible it may conflict with another drive in your system. That's why you don't see the drive.