may be you should take your computer somewhere and get it cleaned
Most computer systems are set up to automatically first check which drive for the booting program
A.) The hard disk drive.
its called a "boot-up"
Booting the computer means starting it up or turning it on.
The booting of a computer is the re-starting of a computer
booting up POST, or Power On Self Test
Booting (also known as booting up) is the term used to describe the start up of a computer system when the power is switched on.
No. It is a permanent record.
COLD BOOT - Booting up from power off condition.WARM BOOT- Restarting the computer WITHOUT turning the power off.http://wiki.answers.com/What_is_the_difference_between_cold_and_warm_booting#ixzz18HVIBp79
The process of starting a computer - from switching on, to being 'user ready' - is known as 'booting' or 'booting up'.
"Booting."
If the HD is already in a working Mac then nothing else needs to be done.If you are buying one to add or replace then you probably have to format it for the Mac OS manually. Simply installing it then booting up will automatically bring up the Disk Utility App to start the formatting and partitioning.