![]() For more information, refer to the How to Clean Your Keyboard section. When a specific key is not working or sticks, turn off the computer and use a can of compressed air to clean around the problem key and then retest the keyboard.When the keyboard still only works intermittently, refer to the instructions below that best matches the issue you are having:.When the keyboard does work correctly, attach one external device at a time and test the keyboard to see which one may have caused the issue. Turn the computer back on and retest the keyboard. ![]() ![]() For more information, refer to CyberPowerPC Knowledge base article What is BIOS and How to Download and Install the latest BIOS? Make sure the BIOS is updated to the latest version.USB flash drive or other external storage devices.Unplug any non-essential external devices, including the following:.Press the Number Lock Key to toggle the numeric keypad on and off.įor more information on where the Number Lock Key is, refer to the document that came with the keyboard. When it is off, no numbers appear when the keys are pressed. Note: The numeric keypad on a desktop keyboard is normally turned on.
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