I've been using a Seagate 2TB external hard drive for a couple years now, and have had no problems with it across multiple computers. Recently, though, it has stopped being recognized by my current computer - I have been using it with this computer for around 8 months now, and as far as I can tell nothing significant has changed - it just stopped being recognized out of nowhere. The light signifying power comes on and the hard drive makes noise but it isn't being picked up by the computer itself. I have tested it with another computer and it is being recognized without any problems - as far as I can tell, there was no serious file corruption.
Searching has told me that generally the problem can be fixed by going into Device Manager / Disk Management and that the hard drive will most likely show up there - however, it does not. I have noticed through unplugging my mouse (switching USB ports had no effect) that the only thing that changes is that one of two USB composite devices disappears while one remains - however unplugging the external hard drive has no effect whatsoever. I'm pretty much stumped on what to do so any advice would be appreciated.
Some screenshots to possibly help with solutions:
http://i.imgur.com/xqy7KTD.jpg - Device manager not picking up hard drive under either disk drives or USB controllers (many solutions told me it may be found there - all the other options listed show no change whether hard drive is plugged in or not)
http://i.imgur.com/YAc1jNb.jpg - Device manager with the mouse unplugged - as mentioned, there is still a USB composite device picked up regardless of whether or not the hard drive is plugged in, an iPod charger being plugged in resulted in a USB mass storage device showing up with no problems
http://i.imgur.com/avWvwg3.jpg - hard drive not being recognized in Disk Management
Any possible suggestions would be much appreciated. The fact that this problem came out of nowhere and that the hard drive still works when plugged into another computer has left me clueless as to what could be causing this.
Searching has told me that generally the problem can be fixed by going into Device Manager / Disk Management and that the hard drive will most likely show up there - however, it does not. I have noticed through unplugging my mouse (switching USB ports had no effect) that the only thing that changes is that one of two USB composite devices disappears while one remains - however unplugging the external hard drive has no effect whatsoever. I'm pretty much stumped on what to do so any advice would be appreciated.
Some screenshots to possibly help with solutions:
http://i.imgur.com/xqy7KTD.jpg - Device manager not picking up hard drive under either disk drives or USB controllers (many solutions told me it may be found there - all the other options listed show no change whether hard drive is plugged in or not)
http://i.imgur.com/YAc1jNb.jpg - Device manager with the mouse unplugged - as mentioned, there is still a USB composite device picked up regardless of whether or not the hard drive is plugged in, an iPod charger being plugged in resulted in a USB mass storage device showing up with no problems
http://i.imgur.com/avWvwg3.jpg - hard drive not being recognized in Disk Management
Any possible suggestions would be much appreciated. The fact that this problem came out of nowhere and that the hard drive still works when plugged into another computer has left me clueless as to what could be causing this.
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