i know there might be alot of complaints about the same problem, i couldnt really find an answer,
I just bought my WD passport 320 GB about 2 days ago, I use windows vista, it had worked for me and the software is really annoying. so i used it on my friends mac and it didnt work so when i put it back on my laptop everything got messed up, my harddrive isnt recognized anymore, its just recognized as a CD, and everytime i open the software it says “No writable WD smartware patition found on your My Passport Essential drive” ,HELP PLEASE IM STARTING TO REGRET BUYING THIS HARDDRIVE. =(