I have a problem regarding my external Toshiba hard disk 500 GB where it can’t be detected in my computer and also disk management. I have formatted the external HD since I was asked to format it when an error popped up. So I formatted it and after the formatting completed, I tried to connect the hard disk to my Windows Win 7 laptop. When I connect it to the laptop, it can’t be detected and yet the hard disk is blinking with its white light like it used to when it is connected to the laptop. I tried the disk management thingy, but it can’t detect my hard disk. I tried in other laptops but the result is same What can I do to make it better? Please help me.