Today's case, Toshiba L730 Laptop series. The problem is not being able to boot into windows operating system.
Every time it boot into windows, the laptop will die or restart and so on. This problem is very common, and this will be a very fun job for laptop technicians.
Indeed the problem looks heavy, but this is already a public secret to the technicians. First make sure the cause is not the system, but the hardware.
Or other problem it caused by over heat processor, because the dirty heatsink fan, so the air can't flows. Try to claen it. If its doesn't work, I sure the problems is the iC.
If it is a hardware problem, it can almost be sure that the main cause is the Nec Tokin IC located around the processor.
To fix it we have to release the old IC first, then replace with new IC, if you have. But do you know what the function is? It works like a capacitor, but it is not a single, but 3 ~ 4 capacitor. Replace it with 3 ~ 4 330uf 3.2v capacitors.
Make sure you do not reverse when installing it. Because it would be fatal if wrong. The method of installation is very varied.
The following in the picture is one of the ways I usually use.
Running test after replace IC Nec Tokin.
For more details, watch my video during ic turns, and usually always succeed. Good luck, good luck.