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Take the time to understand the process of your computer booting up when power first begins to enter the power supply.Knowing what happens when the computer starts will help you to find and fix startup problems much faster. Just exactly what happens from the very second you pushed the ON button and the operating system boots.And when you pushed or click on Shut Down,what takes place behind the scenes of Windows.
FIRST...You press the power switch and electricity flows through the power supply which converts the Alternating Current (AC) into low voltage Direct Current (DC). SECOND...The Basic
Input/Output System (BIOS) is loaded into memory by a Read
Only Memory (ROM) chip and run the Power
On Self Test (POST). Here is where the computer looks for the Central
Processing Unit (CPU) Memory and the Video Card.The POST is THIRD...The BIOS tells the video card to begin showing images.The POST checks the first megabyte of memory for errors.The BIOS tell's Windows to load.You can stop and allow the Bios to load Windows Step-By-Step to see if there are any problems or errors with any device drivers. FOURTH....The Device
Drivers and other parts of the Operating System are initialized.The
Windows logon screen appears.Whsould the computer freeze during this process,you
can re-boot the computer and run the step by step boot up procedure to
see if any errors appear while the PC is loading the operating system. FIFTH....The operating system
now loads Terminate And Stay Resident programs (TSR) such as the any Antivirus
software and the operating system is now complete. When you are finished
using your computer you can either Shut
It Down or allow it to run in the
It is important to understand
just what happens in the boot process so that you can respond to in failures
that may occur.You may be in for a rough day if you see error messages
buring the boot process. Be certain you have taken the
time to create at least two operating system startup disks should something
go wrong.You will have a bad day without this disk should your operating
system crash.
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