The trouble looks to be complicated. It can accure since of any cause. Hardware and software trouble; both can cause this unusual behavior of your Windows system. So I would suggest you to view out the connections first. Make sure entire the connections are right and all the hardware peripherals are set up right in your system. Also see out the power supply. An uneven power supply or misplaced or spoilt hardware can be responsible to force you window to go spoilt and then make troubles while booting up.