Looks like you have altered the BCD Store on your system and will probalby have to change it back. You will need to boot in a way to get into a command prompt window.
So, if your F8 key works, you can do it there, or the Windows made recovery, or an install DVD. Once there a couple of things come to mind. One, use bcdboot C:\Windows to replace the BCD store. The second is to use the command prompt to remove or turn the option off.
A Startup Repair may also wipe the entry, but not sure.
If you get into a command window, just type bcdedit and look for an entry as you set. I will continue to try to find that command, but I have never seen it before, and had no reason to, as far as I know.