Hello, I have an external hard drive attached to my MacBook Pro. Today my MacBoor Pro freezed and I had to turn it off pressing and holding the power button. After turning it on the external hard drive didn't appear in desktop. I checked the disk utility that comes with mac and it shows the HD but I can't mount it. I've tried the HD in a windows OS and it says it can't recognize it. It seems to be damaged Is there any way to recover my hard drive?