1. On HP desktop units the power button may flash red and the system will not power on. Dell desktops may have an amber power button indicating a problem.
  2. Press and hold the power button for about 10-15 seconds until the computer completely shuts off
  3. Unplug the power cord from the back of the computer (make sure the other end is still plugged into power
  4. Verify that the power is connected to the outlet or surge protector.
  5. Press and hold the power button in for 10 seconds
  6. Plug the power cord into the back of the computer
  7. Press and hold the power button in for about 2-3 seconds