Tell us a lot more.
Brand and model of laptop. Service tag or other tags, if it has them.
Then your configuration for that laptop, and the age... how long it has been in use.
and how is it normally used... gamer, student, music, downloads? iPod?
Please explain what you mean by "...IT KEEPS BOOTING UP..." Do you mean it shuts down and reboots, or it boots up by itself when left alone.
Write down just one word at a time from the Blue screen uintil you get it all. That information can be critical.
You could have one or more of several different defects: An infestation of virus or spyware or trojan; failing hard drive; failing memory, inadequate memory, bad cpu fan, heat sink has inadequate or too much thermal paste, power adapter is failing, optical drive is failing.
Is there anything happening, or any routine you are in just before these failures occur? Do you have a reliable electrical connection? Do you have any large electrical device or applicance such as an air conditioner, refrigerator, freezer, or washing machine that is on the power line about the time this problem is going on?
Are you connected to the internet by cable or phone modem.