From an elevated Command Prompt, i.e. click the Windows Orb (Start) > All Programs > Accessories and right-click Command Prompt, then ‘Run as Administrator’. Type bcdedit and press Enter.
The main details are:
Identifier - is the name of the boot entry.
Device - the device is the drive or virtual image that the system will use to boot.
Path - is the location of the bootloader file.
Description - is the name for the operating system, e.g. ‘Windows 7’.