If you’ve ever modified your boot partition information before in a Vista+ computer, you’ve realized Microsoft does not store this in boot.ini. Instead, it’s edited via a command called bcdedit which is a command line tool.
I ran across a tool called EasyBCD which is a GUI front-end essentially. This tool is endorsed by Microsoft, PC Magazine and other organizations. Visit EasyBCD website to download it for free!
Note: This does not work on Windows XP, 2000, ME/98/95. This is for Windows Vista, 7, and Server 2008.