Follow these steps to identify and fix common issues with notebook or desktop keyboards. If the problem persists, contact the manufacturer's technical support.
Make sure the cable is well connected or that the wireless signal is working. For wireless keyboards, check if the batteries are charged and the receiver is correctly connected.
Restarting the computer can solve temporary software failures that affect keyboard operation.
Access the system settings to ensure the keyboard layout is correct and that no accessibility feature is enabled.
Use the Windows Device Manager to look for driver updates and ensure the keyboard is running with the latest version.
Connect the keyboard to another computer to check whether the problem is with the keyboard or the current system.
Dust or liquids can affect operation. Use compressed air or a dry cloth for careful key cleaning.
Some viruses can interfere with keyboard operation. Run a scan with a reliable antivirus.