i think this will take you somewhere and may be solve the issue also try steps -
clean the computer using blower and remove all dust
cut down unwanted and unused start up programs
make sure the fan is working and if possible stick some cooling paste over processor .
update the windows with latest version of update of windows and software
try checking any program causing this issue [https://goo.gl/Z7bVZD|Fix-laptop overheating and keeps-turning-off] and see if this can solve this issue . thank for reading