EDIT: I am not asking how to uninstall Ubuntu. The drive it was installed on is now gone. I did not uninstall it before I pulled it out. On start up the dual boot screen is still showing up and asking me to pick between windows or ubuntu.
A while ago I installed Ubuntu on a separate HDD (dual boot with windows 7). Recently I removed the drive from my computer to put in a different computer. How do I uninstall the rest of Ubuntu? It is still showing Ubuntu as an option on the start up dual boot screen.