My unRaid key has been working fine for over a year, when suddenly it shows up as unformatted and of course it will not boot.  I have a full backup of the key from Sept, so its not a disaster, but there are some scripts that have changed in the meantime.  I also have a 2nd USB key so I can move to it, but first I would like to see if I can recover those scripts from this suddenly unformatted 4gb Kingston USB flash drive.

 

What tools would you try on it?

So I used Wondershare Data recovery, and was able to get the script files that I needed off it.  Now I want to make sure that my USB key is backed up daily too like the rest of the server.  These usb keys don't last forever.