I’m having exactly the same problem with my 1TB My Passport SE. Last Sunday, working fine. Windows updates were installed, and hey-presto it won’t get recognised. Coincidence or not?
It is recognised in ‘Safely remove hardware’, and in Device Manager, although the name doesn’t show in ‘My computer’.
A driver does show under the ‘E’ which is where My Passport normally shows up, although it says it has 0 bytes of data, when in fact the driver is almost 3/4 full. I’ve tried re-asigning a drive to is through ‘disk management’ which it didn’t like. It was saying the disk wasn’t initialised, however, when i try to initialise it won’t let me.
I’ve un-installed the device and drivers and then re-installed, which hasn’t helped. i’ve tried using different USB ports on my computer, different cables to connect the hard drive and even other computers all to no avail (although all the computers have had up-to-date Windows 7 installs, as i’m struggling finding an older version to try it on).
I’ve emails WD for help, but no response yet, just the auto response saying they have recieved my query.
Any help greatly appreciated.