Asus X540S - complete flop. You name it and have had it. Blue screen, whirling blue circles, pages not loading up, black square appearing in the middle of the page, error code 0x000098 plus other codes and finally BIOS appearing every time I switch on. Finally had no choice had to do a complete recovery. Now have nothing saved or stored but still have the same problem. Now have page unresponsive and then it goes into BIOS which I save & exit. Then switches computer off.