Anyway, I seem to have removed and uninstalled Ubuntu a long while back. However, every time I start-up my PC, I am sent to "Windows Boot Manager" and I am made to select either Windows 7 or Ubuntu from the menu options. I have no idea why this entry is still there. I have tolerated this for some time now, but I've come to get sick of it.
I tried to use BCDEDIT (ran CMD as administrator in command-line), but Ubuntu identifier was not present. I tried the EASYBCD utility to find the "Ubuntu" entry and delete it, but that program did not detect the entry. I tried using "MSCONFIG" and searching the "Boot" menu to find the "Ubuntu" entry, but that program didn't detect the entry either. This is a mystery and it's driving me nuts.