I have a MacBook installed with 10.6.3 and I recently acquired a WD hard drive for it. Now I had the person who sold it to me format it for a Mac.
My son has taken it out while the hard drive was running. Now it says the hard drive is read only and Disk Utility will not let me erase or reformat the hard drive. I do not care about the things on the hard drive as I can acquire them again, but it would be nice to have a new hard drive that works. Now when I plug the hard drive in it says it is not able to mount the drive. So what can I do?