Toshiba Satellite p35-s6112 shuts itself down

My Toshiba Satellite p35-s6112 shuts itself down; problem is getting worst, and now the laptop is unusable bc it doesn't stay on for more than 20 minutes. Seems temperature related (fans are working OK). Any clues how to solve?

 

You can try blasting the fan vent with compressed air. If it's overheating because of dust etc. that may help.

 

i had the same problem with that very same laptop for almost a year. what finally fixed it was every time i turned on my computer i have to go to control panel and then power options. the power scheme should be set to toshiba power saver (you can go into that and make sure it is set on a low power usage so it doesnt run too hot) you have to first change the power setting to something else and apply it. after you do that change it back to toshiba power saver and apply that. the computer should then work fine without overheating. at least it worked for me anyway. now my comptuer wont charge at all though so maybe you have that to look forward to as well ha.