I'm having a frequent blue screens, what's the main problem of my computer?

while the Blue screen is up you should try reading what it says. Also it should have an error code that is alpha numeric. jot that code or seqence of characters down and do a google search Ex. "blue Screen GHEU284JYEBSK380" when you google this you should get an answer to what is wrong then you can start on your quest to rectify that spesific problem.