How to Reset BIOS in Your System

How to reset BIOS in your Desktop/Laptop

BIOS lock is the hardware lock which doesn’t allow your computer to boot, at the time you switch it on. It may happen at the time of the purchase of used computer and it comes with a BIOS lock and you can’t get through the main screen. It is not a normal look and can be changed with three different methods.

Resetting from within the BIOS

  • Turn your computer on and start pressing the DELETE key from the keyboard to enter the BIOS screen.
  • In previously built computers, you need to press F1, F2 or F10 to enter the BIOS screen. In Windows 8, you may not have the access to a traditional BIOS screen and you need to use Advanced Boot menu.
  • Once you are in the BIOS screen, you need to find the option of “Reset to Default” and it may vary as “Factory Default”, “Setup Defaults”.
  • After clicking Reset to Default option, it will prompt to save the changes and press selection. The computer will reboot automatically and after restarting, it will launch the home screen.
Reset BIOS

Reset BIOS

Resetting the Jumper

  • This is the proper hardware solution to reset the BIOS. You need to switch off the computer with a normal procedure and look for a rocker-style switch which will be at the back of the CPU.
  • In normal conditions, the rocker style button will be ON and you need to switch it OFF. If there is no button, then unplug the wires which are connected to the computer. This method will not work for laptops.
  • One needs to be very careful while doing this method, as you will be working closely with the internal circuits of the CPU and electrostatic discharge can easily destroy sensitive components. After unplugging all the wires, open the case of the CPU, as you want to have access to the motherboard.
  • After unboxing the CPU, find the CMOS jumper which is the three-pin jumper on the motherboard which controls the BIOS.
  • CMOS jumper will be attached to two pins and you need to change the position of the jumper. If the jumper is attached to first and second pins, then move it to second and third pins. Make sure while moving the jumper and plugging in different pins, the jumper should be straight and it will not bend the pins.
  • Press and hold the power button for 10-15 seconds. The computer will not turn off, as the rocket style button is still switched off and it will discharge all the remaining power stored in the capacitors and will reset the BIOS.
  • Now put the jumper in the real position and close the case of the CPU and move the rocket style button to ON or plug in all the wires.
  • Switch on the computer and enter the BIOS screen to change the settings as per your preference.
Resetting the Jumper

Resetting the Jumper

Resetting the Jumper 2

Resetting the Jumper 2

Remove the CMOS battery

  • Switch off the computer with a normal procedure and look for a rocker-style switch which will be at the back of the CPU.
  • The rocker style button will be ON and you need to switch it OFF. If there is no button, then unplug the wires which are connected to the computer.
  • One needs to be very careful while doing this method, as you will be working closely with the internal circuits of the CPU and electrostatic discharge can easily destroy sensitive components. After unplugging all the wires, open the case of the CPU, as you want to have access to the motherboard.
  • In many laptops, CMOS battery is the removable part which is at the bottom of the laptop. If there is no removable part, you need to disassemble the laptop.
  • CMOS battery is located near the PCI slots which can be changed by different manufacturers. The battery is a standard 3V, round shaped, flat watch battery (CR2032).
  • Press and hold the power button for 10-15 seconds. The computer will not turn off, as the rocket style button is still switched off and it will discharge all the remaining power stored in the capacitors and will reset the BIOS.
  • After the reset put the battery back to the original position and assemble the computer.
  • Switch on the computer and enter the BIOS screen to change the settings as per your preference.
Removing the CMOS Battery

Removing the CMOS Battery

Removing the CMOS batt 2

Removing the CMOS batt 2

Removing the CMOS batt 3

Removing the CMOS batt 3

Removing the CMOS 3

Removing the CMOS 3

Removing the CMOS 5

Removing the CMOS 5

Source: wikihow.com

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