When you first turn your
computer
on, you are briefly presented with a BIOS "splash" screen. Somewhere on
this screen (just where depends on the manufacturer), are instructions
on how to access BIOS settings. Generally, this requires tapping a
function key, say F2, while the splash screen is visible. Make note of
which key the splash screen says to press to access the BIOS and
restart your computer.
When
the computer boots and the splash screen appears, tap the required
function key quickly to enter the BIOS settings screen. You will only
have a couple of seconds to hit the right key and if you miss it you'll
have to restart the computer and try it again.
Once
you successfully enter the BIOS settings screen, use the arrow and
function keys to navigate the menus. Keep an eye out for an option that
says something akin to "reset to factory defaults." If you see this,
follow the on-screen instructions to reset the BIOS to the factory
settings. Then, confirm your choice and exit the BIOS screen, usually
by pressing escape. Congratulations, you are done.
If your
BIOS does not have an option to return to factory settings, things are
more difficult. Because the BIOS is stored in ROM, it must have a
constant power supply to store any changes you make to it, otherwise it
would reset every time you disconnected your
laptop
from AC power. Removing power to the BIOS resets it to factory settings
and involves disconnecting a small battery attached to the motherboard.
On many laptops, the BIOS battery is easily accessible through a door
on the bottom of the unit. Unplug the computer, remove the main battery
and touch something metal to ground yourself.
Remove
any screws holding the BIOS battery door in place. Then identify the
battery, (it is generally a small lithium "watch" battery), and remove
it taking care not to damage any surrounding circuitry. Let the
computer rest for a minute or two to discharge any remaining power, and
replace the battery.
If your
laptop does not have an easily accessible door for the BIOS battery,
you may have to dive deeper and disassemble the computer to find it.
Consult your laptop manufacturer's website for information on replacing
or removing the BIOS battery from your model.
2
When
the computer boots and the splash screen appears, tap the required
function key quickly to enter the BIOS settings screen. You will only
have a couple of seconds to hit the right key and if you miss it you'll
have to restart the computer and try it again.
3
Once
you successfully enter the BIOS settings screen, use the arrow and
function keys to navigate the menus. Keep an eye out for an option that
says something akin to "reset to factory defaults." If you see this,
follow the on-screen instructions to reset the BIOS to the factory
settings. Then, confirm your choice and exit the BIOS screen, usually
by pressing escape. Congratulations, you are done.
4
If
your BIOS does not have an option to return to factory settings, things
are more difficult. Because the BIOS is stored in ROM, it must have a
constant power supply to store any changes you make to it, otherwise it
would reset every time you disconnected your laptop
from AC power. Removing power to the BIOS resets it to factory settings
and involves disconnecting a small battery attached to the motherboard.
On many laptops, the BIOS battery is easily accessible through a door
on the bottom of the unit. Unplug the computer, remove the main battery
and touch something metal to ground yourself.
5
Remove
any screws holding the BIOS battery door in place. Then identify the
battery, (it is generally a small lithium "watch" battery), and remove
it taking care not to damage any surrounding circuitry. Let the
computer rest for a minute or two to discharge any remaining power, and
replace the battery.
6
If
your laptop does not have an easily accessible door for the BIOS
battery, you may have to dive deeper and disassemble the computer to
find it. Consult your laptop manufacturer's website for information on
replacing or removing the BIOS battery from your model.
Read more:
How to Reset the BIOS on a Laptop ' eHow.com http://www.ehow.com/how_4740583_reset-bios-laptop.html#ixzz1YX2FMmVc
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