It'll be sorted if I've got anything to do with it but I think it'll be the situation rather than the laptop. Asus forget to tell their customers that if they upgrade to Windows 8.1 via the Windows Store it kippers the recovery partition so if something goes wrong as it did with mine a system recovery can't be done unless a certain procedure is followed and that can't be followed if Windows can't be accessed. The air was navy in here on Friday evening and most of yesterday.