1. Check that the power cord is securely plugged in to the power outlet
2. Try pressing and holding the power button for several seconds
3. Check to see that the computer is not in sleep/hibernate mode
4. Try unplugging other non-essential devices (printers, speakers, external hard drives, etc.) connected to the computer
5. Connect the computer to an outlet with a backup power supply or surge protector
6. Upgrade or update your computer’s drivers.