Ext HDD Problem. Cant Access or format. Not responding. Filesystem RAW

Hello!

I bought a WD My Passport 1TB awhile back, now i got problems. It worked fine until recently and i have tried different compuiters with no luck, and that tells me something is wrong with the drive.

When i plug it in, Windows recognizes it and i hear the sound. The LED on the drive keeps blinking and nothing happens for 3-4 minutes. Then it shows up under Computer as simply "Local Disk (K:)" like this screenshot shows:


Then if i right click on it to get the drop menu or try to open it, the window stops responding. Like this:


Now, if i go in to Disk Management i dont see any HDDs and all i get is "Connecting to Virtual Disk Service..." Like this:


And again after some time the HDD shows itself, now like 20 minutes Disk Management shows as normal. Like this:

As you can see it says the file system is RAW, it has a 100% free space (thou i had files on it).


Another wired thing that happens when the drive is plugged in, is that i can't shut down the computer, it just keeps rotating on "Shutting down..." until i unplug it. I was able to update the firmwire with WD's "self updater" but nothing changed. I can't find a way to format it, since all programs that touch the drive stops responding, maybe there are programs that can force a format?

Does anyone have any thoughts on what this could be? I'm at a total standstill. Help is very much appreciated and tell me if you want any additional information as I'm sure I've forgot something.

//Staffan