Windows Boot Manager shows an operating system that is not installed

I added a hdd to my laptop that already had Windows 7 on it. I booted into it a couple times. Then I formatted the hdd because I already have Windows 7 on my primary drive and just needed the new hdd for extra space.

Now when I boot, it says there are two operating systems, even when the one drive is formatted. If I choose the operating system on the formatted drive, it errors saying "the device is inaccessible". Booting into the primary drive OS works fine.

I booted from my windows 7 dvd, and even it says there are two operating systems still.

I would like there to be only one operating system detected.

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