You may restore it to its original settings by opening the configuration menu. Usually, this can be accessed by booting your computer while pressing F2 or delete, depending on your computer's model. It will bring you to the configurations menu. Look for the "restore to default setting", highlight using your arrow keys and press Enter, press Esc and go to the exit menu using the tab or arrow key, select save settings and exit. Reboot your computer.
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You may restore it to its original settings by opening the configuration menu. Usually, this can be accessed by booting your computer while pressing F2 or delete, depending on your computer's model. It will bring you to the configurations menu. Look for the "restore to default setting", highlight using your arrow keys and press Enter, press Esc and go to the exit menu using the tab or arrow key, select save settings and exit. Reboot your computer.