How to Enable a USB Keyboard in the BIOS

Written by jeff grundy Google
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How to Enable a USB Keyboard in the BIOS
Enable a USB keyboard so you can use it in DOS. (usb image by Edvin selimovic from Fotolia.com)

If you want to use a USB keyboard to access Windows command prompt options, make changes in the BIOS (Basic Input/Output System), or to operate legacy operating systems, you must enable support for the device inside the BIOS.

By default, most BIOSs do not enable the USB support needed to allow access to the settings with a USB keyboard. Therefore, you must use an older PS/2 type keyboard to enter the BIOS and then make the needed changes.

Skill level:
Easy

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Things you need

  • PS/2 keyboard

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Instructions

  1. 1

    Shut down the computer and disconnect the USB keyboard.

  2. 2

    Connect a PS/2 keyboard to the PS/2 connector port on the rear of the computer.

  3. 3

    Turn on the computer and press the "Delete" key several times as soon as you see the initial boot or company logo screen. Wait for the main BIOS set-up screen to appear.

  4. 4

    Press the right or left arrow keys to move the cursor to the "Advanced" or "Advanced Settings" menu option. Press the "Enter" key.

  5. 5

    Move the cursor to the "Integrated Peripherals" or "Peripheral Configuration" menu option. Press the "Enter" key.

  6. 6

    Press the down-arrow key to navigate to the "USB Controllers" option. Press the "+" or "-" key to change the menu option to "Enabled."

  7. 7

    Move the cursor to the "USB Legacy Support" or "USB Legacy Function" field. Press the "+" key repeatedly until the value option changes to "Enabled."

  8. 8

    Press the "F10" key to save changes to the BIOS settings and exit the set-up utility. Wait until the computer begins to restart and then press the power button and hold it for approximately four or five seconds. The computer shuts down completely.

  9. 9

    Unplug the PS/2 keyboard from the computer and set it aside. Reconnect the USB keyboard restart the computer. As soon as you see the initial boot screen, tap the "Delete" key several times and wait for the BIOS set-up screen to appear. If you are able to access the BIOS set-up screen with the USB keyboard, USB support is active in the BIOS.

Tips and warnings

  • It is a good idea to keep a PS/2 keyboard on-hand for emergencies. PS/2 to USB adaptors will not work in the BIOS with legacy USB mode disabled. Powered PS/2 to USB adaptors are available and do work in the BIOS,however, they often cost more than a PS/2 keyboard.

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