I've a External HDD( Western Digital company-500GB) which was working properly last night but today it's not working. when I connect the EXt. HDD to my laptop usb port then it's got power but not shows in my computer. when I go to device management it shows a window (you need to initialize before logical disk management can access it.) but when I go to initialize the HDD then show it "the media write protected". I cann't initialize the HDD and cann't access the HDD. Someone help me to recover my old DATA from this Ext. HDD. Thanks for advance.