Andy - he needs the data off it first!

Mark, how many partitions are on your master C drive, as your pic above show C & D drives -D: could possibly be the 'work' disc - try right clicking that?

Mark, if you get stuck, I will happily burn the contents of your spare drive to DVD (if you have a dvd drive to read from?) and return both to you (fully confidential of course, but I realise data is often sensitive and you may not wish to do that). Hopefully someone closer to you can assist.