For laptops I advice monthly use of the canned air to the vents. While monthly is more than required I find many forget a month or two then this gets it back on track.
So, are you keeping it clean and cool?
Getting frustrated my laptop keep on restarting by it self time by time, ive noticed its when i connect to internet, may laptop is toshiba L735 windows 7 64bit, RAM 4gb, first noticed some clicking sound happening then will restart, i tought the HD the problem but after replacing with new SSD it still same but now noticed it happened when i connect to internet, i can surf few min then it will restart. Please help me