Corrupted and unread Seagate external hard drive

Hello,

I am using seagate external hard drive of 1 TB capacity. Now its corrupted and unreadable. By searching in web i followed a command in cmd i.e. "chkdsk /f g:". After performing this command the corrupted drive is invisible in my computer but it is visible in the devices and printers as unopened one. A couple of times i uninstalled and installed the drivers as said in your web page. Still the problem is not resolved.

Please help me out in this regard. How I can resolve this problem? I wanted that the drive should be visible in the my computer as openable one, without causing any damage to the files in the drive.

thanks