After reading hundreds of threads on WD Passport Essential problems I haven't found a solution yet so I hope someone here can. I have partitioned the drive in to 2 sections, one of 400gb for Time Machine and one of 100gb for other usage. After this I encrypted it with the WD software (I wish I had known this would give problems). This set-up worked for me for a few years but all of a sudden it stopped functioning properly. So this is what I've tried: 1. Connect the drive 2. open the unlocker and put in the password 3. Unlocker accepts the password and the virtual drive unmounts itself (as normal) 4. Disk utility doesn't recognise a drive nor does system profiler. 5. The time machine partition shows up but I can't go any further than the first map and that one is 0 kb although the partition shows 300gb being used. After filling in the password the partitions show up for a few seconds in disk utility grayed out and I can't click on it. System profiler does recognise the drive until I put in the password. As the drive contains my back-ups I'm desperate to get the files on it back. Thank you to anyone who tries to help!