Restart the laptop
Check if the touchpad is enabled with the function key
Turn on the touchpad in Settings
Enable the touchpad in Device Manager
Update or reinstall...
Power off the laptop and unplug it
Remove any external keyboard or USB devices
Check for dirt, crumbs, or debris under the keycaps
Use compressed air to...
Check the power cable and battery
Increase the screen brightness
Restart the laptop
Disconnect external devices
Perform a hard reset
Use the display toggle key
Connect to an external monitor
Reseat...
Check that the power adapter is plugged in securely
Try a different wall outlet
Inspect the charger and cable for damage
Remove the battery if it is...
Check that the power outlet works
Try a different wall outlet
Verify the charger is plugged in securely
Inspect the charger cable for damage
Try a known-good compatible...
Restart the laptop
Check the display cable and reconnect it if possible
Disconnect and reconnect any external monitor
Update the graphics driver
Roll back the graphics driver if...
Restart the laptop
Check if the keyboard is physically disabled with a function key
Press the Fn key plus the keyboard lock key if available
Turn off...
Clean dust from vents, fans, and heatsinks
Use the laptop on a hard, flat surface
Keep air vents unobstructed
Close unnecessary apps and browser tabs
Reduce CPU-intensive tasks
Check...