I have been using Ubuntu 16.4 LTS and I really need to go back to Windows but when I boot up a Windows 7 installation CD or USB it loads all of the processes but I can't see any partition to select. I have already searched for the solutions and what I figured out is that I have installed the Ubuntu partitions in my system and I don't know how can I remove them in my computer. I really need to go back to Windows. Anyone help me please I really want to recover my lost Windows partitions and completely remove Ubuntu in my computer!! Help!