if u know how to make ur own way to the cooling fan inside the
laptop, u can use a small brush and brush away the dust collected.
if not, get someone professional to do it. if nt, to monitor the
situation, d/l notebook hardware control to monitor the
temperature. if u dont bother to settle the problem, u can lower
CPU processing speed, so it wont heat up so
fast, or dont heat up until it restarts itself.