Wow, sorry to hear nothing is working for you. As far as getting into that drive, you might give it a try after booting and running a different Operating System from a Live CD/USB.
A Live CD/DVD or USB flash drive contains a complete bootable computer operating system (OS). When you boot a computer from it, the OS loads into, and then runs from memory instead of a hard drive. This allows you to run an OS without installing it or making any changes to a computer's current configuration.
To create one, download an ISO file containing the OS you want to use, (such as Ubuntu
), then use something like ISO Recorder
to burn it to a CD/DVD or USB key.
Boot your computer from this disc/key and your computer will be running that OS instead of the one on its hard drive.
Now see if you have access to the problem drive.
When you're done testing, simply reboot your PC from the HDD/SSD like you normally would.
If the problem persists even when running a different OS, the issue is probably hardware related.