Computer freezes up randomly

[butters13]

ok so i have a sony viaos and every time i lay my hands down around the touch pad or type to hard or even moving it too much it freezes. talk to the rep said to restore but i don't think its the issue. i reseated the hdd but still does the same any ideas?

 

[popatim]

How old is it?

 

[butters13]

i've had this computer for about 3 years its a vgn-nw series