This question already has an answer here:
I had Ubuntu 12.04 installed with Wubi on a partition of my main HDD and decided I would do a proper installation of it. In the process of prepping the drive, I foolishly formatted the partition before uninstalling Ubuntu and because of that, the entry on the Windows boot manager menu was never removed either.
How might I go about fixing this problem? I'm hoping to be able to remove that entry and disable the menu.