BIOS stands for Basic Input/Output System and is embedded in motherboard. BIOS acts as bridge between hardware and operating system. BIOS performs POST and loads operating system during startup. BIOS settings are stored in non-volatile memory chip
Try keyboard hard reset by unplugging for 30 seconds and holding ESC key. Laptop users should disconnect all peripherals and power for 15 seconds. Check for pinhole reset button on laptop bottom surface. Clean keyboard with compressed air if hard reset doesn't work. Boot into BIOS to check if keys work properly
Remove PS5 covers by gently pulling off PS logo edges. Use soft brush to clean vents and compressed air. Dampen cloth with alcohol to wipe case interiors. Replace covers after cleaning
Restart laptop by holding power button until it turns off. Refresh display using Win + Ctrl + Shift + B. Disconnect all connected accessories like mice and keyboards
CPU fan error appears during Windows startup with "Press F1 to run setup" message. Error occurs before Windows 10 boots and may not be due to overheating
Filter Keys can be turned off by pressing right shift for 8 seconds. Restarting computer can resolve temporary keyboard issues. Check batteries and clean keyboard if wireless. Inspect for physical damage and clean keys. Verify keyboard connections and try different USB ports