Mac freezes when hard drive plugged in

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My OS X MacBook Pro started freezing every time I plug in my external Western Digital 1TB hard drive. It worked fine until a few days ago when I emptied the trash with the hard drive plugged in. The only thing i can do is force shut down the computer and unplug my hard drive.

Any thoughts?

1 reply

The problem may come from your power supply which is not powerful enough to accept any other hardwares !