Purchased a new plug and play 2 TB external hard that is not showing up as an icon in My Computer in Windows 8. It shows up in Devices and appears to be working properly. Driver is up to date. When I go to Disk Management the external is also recognized there but when I right click on the partition window to assign the external HD a drive path letter the drop down menu selection required to do so is greyed out and I am unable to perform the function. Uninstalled the USB driver for the device and re-installed and still nothing. I assume that when I activated Windows 8 on this new laptop I running as an administrator. Checked the unit out on my old laptop which is running Windows 7 and the same problem occurred. Perplexed.