Troubleshooting
the Checksum Error 
An operating system is a place where
both the hardware and software comes together and functions.
BIOS which is Basic Input Output System provide an interface
to hardware devices. System will not recognize the hardware
settings because BIOS get the software for each hardware
device. So, we can say that BIOS is an absolute secured
program in the system. It is not possible with the checksum
file. If we see checksum error, it
simply indicates that something crucial has happened
in BIOS. The booting process will take place unless
we fix the checksum error.
We need to “Restart” the computer by pressing “F10”
key to troubleshoot the checksum error.
Then we will see a screen with full of options on a
blue background. Now we need to press “ESC” from the
keyboard and then “Y” in order to exit from BIOS. The
system will restart now. Now we need to completely shut
down the computer to avoid any checksum error.
After this, we need to remove all the cables and take
out the outer casing of the tower. We need to unscrew
and pull the sliding cover for opening the tower. Here,
we need to look for CMOS battery which would be located
on the motherboard. Mother board would look like a rectangular
shaped circuit. There will be a silver color and round
battery which we need to take out but gently.
Now, again we need to put the battery back with the
positive side facing up and need to close the sliding
cover. Now attach all chords into the computer. Same
way, we need to press the “F10” key and enter the BIOS
setup. We may set the time and date. Then, we need to
close it by pressing the “ESC” and “Y’ key. Now, system
will restart and the checksum error
will go away.
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