I installed a new Windows hard-drive in my computer and took the old one (Ubuntu 14.04 installed on it) out and put this in an external hard drive encasing.
The problem I am facing now is that Windows does not pick this external hard drive up (the only way to use the hard drive is to switch the laptop off, plug the external in and boot into the Ubuntu OS installed on the external. How do I format this hard drive for use as a Windows external?