I have an laptop that not boot . What can I do to fix the error?

You should give us more detail in order for us to come up with a solution. Possibly upload a video to Youtube. Does the laptop beep when you try to turn it on? If so, how many beeps?
 
Please provide us with the brand and model of the laptop, its age, operating system, and other information (does the screen turn on, does Windows try to start etc). As well, please do not personally insult anyone here again or you will be posting elsewhere.