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I have Toshiba P745- S4102 . When I open a window it freezes. I have to do a hard shut down each time I turn on my laptop.
I want recover my laptop to it's factory setting. I brought the laptop from bestbuy brand new. It did not come with a CD for recovery. I have windows 7
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When the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail. A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust. Check the CPU fan to see if it spins freely, if not replace the fan. If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a small brush and can of compressed airto do this.
Unplug power cord from laptop, remove battery
from laptop. Open memory access panel on the bottom of the laptop.
Remove memory module(s) (SO-DIMM). Plug power cord back into laptop.
Turn laptop on (with the memory removed), the caps lock and scroll lock
LEDs light, then the laptop shuts itself off. Unplug power cord from
the laptop. Reinstall the memory modules. Make sure they are seated
correctly. Put the battery back in, plug the laptop back in, and power
on. Laptop should power on and boot up properly. May need to hold the power button down to get it to power on properly. Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience. Thank You.
Take out the AC power jack and then remove the laptop battery. Plug AC power back in and see if the laptop will turn on. If it turns on let it boot the operating system and then shut down as normal, remove the power cord and reinsert the battery and again see if it will switch on. If it does then there has been a glitch with the battery. If it doesn't then there is a problem with the battery.
If the laptop won't switch on either with or without the battery then there is a possibility that the motherboard has developed a problem.
Most laptops that I have worked on that power off that quickly turned out to be an overheating problem. Is the cooling fan running for the brief period that you can hear the hard drive before it powers off ? If the fan is running another potential resolution might be to remove the processor and apply new thermal paste.