I found the problem. Placed the virtual hard-drive on a sata port when it was supposed to be on the IDE Primary Master slot.
Here is how I disabled GRUB:
First I downloaded EasyBCD. Afterward I opened it up and entered the, "Manage Bootloader" tab. Here I selected, "reinstall Vista bootloader." Then I clicked on, "Write MBR."
That overwrites GRUB and placed the Vista loader in its place. If you want to add Linux to the boot-list, you will have to go to the, "Add/Remove Entries" tab within EasyBCD. From here you will select the tab of the OS you want to add to the boot-list. Afterward select the, "type," "name," and the "drive" on which the selected OS resides. After pressing, "Add Entry" the OS will be added to the boot-list.