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How to Reset BIOS

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In this article, the wikiHow will show you how to restore your Windows computer’s BIOS (short for Basic Input/Output Settings) to factory settings. You can operate on the BIOS page of most computers. However, if you can’t access the BIOS page, you need to reset the BIOS by opening the case and removing the CMOS battery from the motherboard, or re-plugging the motherboard connector in the computer case.

In some cases, opening the computer case will void the warranty and risk damage to the machine. If the BIOS cannot be accessed, the best option is to take the computer to a technician instead of doing it yourself.

Reset in BIOS page

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Restart the computer. Open Start

Windows Start

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, click the power icon

Windows Power

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and select Restart .

  • If the computer is locked, click on the lock screen and then click the power icon in the bottom right corner of the screen and select Restart .
  • If the computer is turned off, press the power on button.
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Wait for the boot screen to appear. Once you see the Windows logo, you only have limited time to press the setup key.

  • It is best to press the setup key as soon as the computer starts to boot.
  • If you see “Press [key] to enter setup” or something like that at the bottom of the screen and it disappears, you have to restart your computer and try again. again.
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Press the Del or F2 key to enter the setup page. The setting key on each model is different, please see the message on the screen to apply.

  • If the Del or F2 key doesn’t work, try F8 or F10 .
  • You can press the “F” key to access the BIOS. It’s on the top of the keyboard, although you have to find and hold the Fn key while pressing the correct “F” key.
  • You can refer to the manual that came with it or look on the support page to determine the BIOS key of your machine.
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Wait for the BIOS to load. After pressing the correct setup key, the machine will load the BIOS page. This process only takes a few seconds. When the download is complete, you are taken to the BIOS setup menu.

  • If you can’t access the BIOS because of a password or the BIOS is corrupted, use another method in another article.
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Find the “Setup Defaults” option. The location and name of the option on each model are different, usually you will see the items “Reset to Default”, “Factory Default”, “Setup Defaults” (Settings). default) or something like that. This option can be in any tab or listed near the navigation button.

  • If the BIOS does not have this option, apply the methods below.
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Select “Load Setup Defaults” and press the ↵ Enter key. Use arrow keys to select, press ↵ Enter key to start BIOS reset.

  • The option name in the BIOS menu on each model is different.
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Save changes and confirm selection if necessary. This is usually combined with the BIOS exit process. The computer will restart automatically. If you need to change the BIOS settings after the reset, you need to reboot the machine again and access the BIOS to change.

Remove the CMOS battery

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Power off the computer. Use the Start menu or hold down the power key to turn off the device.

  • If using a desktop computer, you need to completely turn off the CPU by pressing the switch on the back of the CPU case.
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Turn off the power completely. Includes both desktop power cable and laptop charging cable.
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Remove the computer battery if necessary. If using a laptop (or desktop with a backup battery), remove the battery before continuing.
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Release static electricity before handling. Touch unpainted metal in any position to remove static electricity before removing the unit. Touching the motherboard or internal components without fully grounding can damage the computer.
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Open the case. You need to reach your computer’s motherboard. Be very careful when working inside the computer because static electricity can easily damage electrically sensitive components.

  • With many laptops, you can access the CMOS battery by removing the back cover of the machine. If you don’t see any back cover, you have to remove the device to access it.
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Remove the CMOS battery. The pin is usually located near the PCI, but sometimes it is located somewhere else depending on the motherboard manufacturer. The battery may be obstructed by the expansion card or cable. Standard 3V CMOS battery, round and flat (CR2032).

  • The CMOS battery cannot always be removed. If the battery can’t be removed, don’t try, try resetting the motherboard connector.
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Press the power button. Press and hold the power button for about 10-15 seconds to release all the remaining current in the capacitor. When the power is turned off, the CMOS memory will be reset and restore the BIOS to factory settings.
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Reinsert the CMOS battery. Carefully insert the battery into the machine. Make sure you insert the battery in the correct direction. The smaller side will face down.
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Reassemble the computer. Handle very carefully, remember to ground before doing.
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Connect the computer to a power source. If the wall power is disconnected and/or the battery is removed, plug it back in and/or insert the battery into the machine.
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Turn on the computer. Depending on the model, you may have to go into the BIOS and reconfigure some options, including the default boot option or the date.

Plug the connector back in

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Power off the computer. Use the Start menu or hold down the power button until the device turns off.

  • If using a desktop computer, you may have to power off the CPU by pressing a switch on the back of the case.
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Unplug the machine. Including the power cable of the desktop and the charging cable of the laptop.
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Remove the battery if necessary. If using a laptop (or desktop with a backup battery), remove the battery before continuing.
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Release static electricity before handling. Touch any unpainted metal surface to remove static electricity before disassembling the unit. Touching the motherboard or internal components without fully grounding can damage the computer.
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Open the case. You need to reach your computer’s motherboard. Be very careful when working inside the computer because static electricity can easily damage electrically sensitive components.
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Image titled Reset Your BIOS Step 24

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Find the CMOS connector. Find the 3-pin BIOS control pin on the motherboard. It is usually located near the CMOS battery. The connector is plugged into 2 out of 3 sockets.

  • The connector may be labeled CLEAR, CLR, CLEAR CMOS, PSSWRD, etc. Refer to your motherboard documentation to find the correct connector.
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Change the connector to another 2 pins. For example, if the connector is plugged into the 1st and 2nd pins, switch to the 2nd and 3rd pins. When removing the connector, be sure to pull it straight up so as not to bend the pins.
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Press the power key. Press and hold the power button on your computer for about 10-15 seconds to release all the current that has accumulated in the capacitor. This is a BIOS reset operation.
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Return the connector to the default position. Plug the connector into the original sockets. This allows you to access the BIOS when the computer boots.
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Computer assembly. Handle it very carefully and remember to ground it before doing so.
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Connect the computer to a power source. If you unplug and/or remove the battery, plug it in and/or insert the battery.
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    Turn on the machine. Depending on the model, you may have to go into the BIOS and reconfigure some options, including the default boot option and the date.

    • Advice

    • If the configuration is not customized, most computers will still work fine with the default BIOS settings.

    Warning

    • Ground before touching components inside the computer to reduce the risk of static electricity damaging the machine.

    In this article, the wikiHow will show you how to restore your Windows computer’s BIOS (short for Basic Input/Output Settings) to factory settings. You can operate on the BIOS page of most computers. However, if you can’t access the BIOS page, you need to reset the BIOS by opening the case and removing the CMOS battery from the motherboard, or re-plugging the motherboard connector in the computer case.

    In some cases, opening the computer case will void the warranty and risk damage to the machine. If the BIOS cannot be accessed, the best option is to take the computer to a technician instead of doing it yourself.

    Thank you for reading this post How to Reset BIOS at Lassho.edu.vn You can comment, see more related articles below and hope to help you with interesting information.

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