When you try to switch a console to fullscreen in Windows 7, it gives the error This system does not support fullscreen mode. Of note is the part about “this system”, intimating that some systems do support fullscreen consoles. Similarly, if you try to use the
SetConsoleDisplayMode API function, it returns error 120: This function is not supported on this system., again with the “this system”.
Most systems could do fullscreen consoles in Windows XP, and it works in Windows 7’s Safe Mode, so what the heck does Windows 7 need for this to work in a normal boot?