Windows doesn't see the USB hard drive. YES, I've read the FAQ

WD External Drives External Drives for PC
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The problem is the following - windows explorer doesn’t recognize WD My Passport usb hard drive. It’s listed among the equipment, it’s present in safe eject menu in the tray, but it’s not seen in My Computer, and I don’t have access to the files, and no autorun is executed when I plug the drive in. All the drivers are installed, and windows says that the device is working properly. It says in the FAQ that in such case I have a faulty partition, but my MacBook sees this drive and all its content absolutely fine. Anyone has any idea what is wrong? 

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It could be formatted for Mac and if that’s the case it will not show on Windows

Check Disk Management ( Windows ) and see if showing there

1 Like
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Try Windows 7 suport/forum -

http://www.sevenforums.com/hardware-devices/39056-unable-detect-external-hard-drive-seagate-320gb.html

I had similar prob & this solved it.

Cheers