I am having the same problem as others in this thread. my WD my passport is not recognized by my computer. check disk claims the disk is "working properly" [no yellow triangles] I have tried the fixes listed here. control panel sees it, troubleshooting finds no problems - remove - reboot - uninstall - reinstall - update drivers - "cckdsk/f" - purchased a new cable - etc. right now it shows as Disk 1 unknown, not initialized. when I hit "initialize disk" I still get the message "cyclic redundancy check". I am going around in circles. I only back up my info 2x per year, the disk is 80% or more empty and I keep it stored in it's original packaging so I doubt it is dusty. Have any other suggestions? I hate to lose all my music and family photos & family history info going back to the early 1900's. PS: I am using windows 7 and have no wish to upgrade higher