Hi, I've been using my WD My Passport Ultra for 2 years now and it was doing great until this week when I opened its Properties, checked the two options: 'Comtress this drive ..' and 'Allow files on this drives ..' I found out that there was/is only one folder missing or hidden. I tried to apply your advised of adding the 'unhidden.bat' file, but I got the 'Access Denied' popup. Yes, I am the owner of this portable drive. Please help. Thank you very much in advance , Nath.