It sounds like there is a file missing or something, with windows unable to boot at all it's unlikely that you're going to be able to change a setting.
It is possible that this is caused by a hardware error, that is causing a windows error and the machine is automatically rebooting.
of course, as this is a laptop, it's going to be difficult to swap out items of hardware, but if there is more than one block of ram in the machine then you could try taking them out in turn to see if one of the sticks is bad.
if the machine is rebooting because of a software error, like missing files in windows, then you'll need to replace these files, the easiest way of doing this may be to re-install windows.