The interface is simple:

: After the installer writes the boot code, you must manually copy grldr and a configuration file named menu.lst to the root of the drive. Critical Precautions

: Format the target USB or partition (FAT32 is recommended for maximum compatibility with ISOs). Running the Installer : In Windows XP, run grubinst_gui.exe directly. In Windows Vista or later, run as Administrator .

Launch grubinst_gui.exe with administrative privileges.

Right-click the installer and select Run as Administrator to ensure disk write access.