PC freezes - Windows XP Home Edition

My computer is only about 5 yrs old, i had some more ram put in, i run nortan through my phone company, qwest, its free, i also have malware bytes and it dosent find any virus's it does find some things like cookies and i delete them, anyway i need someone to please look at my computer and tell me what and why it just stops and says it has to close, yet it saves the spot i was on, it can be me in gmail. writting someone or it can be me, looking at something and it dosent always do it when i surf but it makes me crazy, i would like this computer to work without having to turn it off and on,because it freezes at times and that is crazy please someone help me.
 
The power supply could be failing... You need to take it to someone that knows how to repair computers
 
Back