First fo all I would like to introduce my laptop. I have Toshiba Portege M400-S5032 laptop which suddenly locks up and the fan of it runs faster than it normally does. Even the Ctrl-Alt-Del fails to work and the only option remains with me is that reboot or shutdown the laptop by holding the Power button. This hampers both time as well my work on my Laptop. Day my day this situation is increasing. I have than tried to open it just to check whether there is dust or something. If someone knows how to fix these then please help me.
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