A Troubleshooting and support
Troubleshooting
The computer is unable to start up
If the computer does not turn on when you press the power button, the following suggestions may help you determine why the computer will not start up:
●If the computer is plugged into an AC outlet, plug another electrical device into the outlet to be sure that the outlet is providing adequate power.
NOTE: Use only the AC adapter provided with the computer or one approved by HP for this computer.
●If the computer is running on battery power or is plugged into an external power source other than an AC outlet, plug the computer into an AC outlet using the AC adapter. Be sure that the power cord and AC adapter connections are secure.
The computer screen is blank
If the screen is blank, but the computer is on and the power light is on, the computer may not be set to display the image on the computer screen. To transfer the image to the computer screen, press the f4 action key.
Software is functioning abnormally
If the software is unresponsive or responds abnormally, follow these suggestions:
●Restart the computer by selecting Start > Shut down > Restart.
If you cannot restart the computer using this procedure, refer to the next section, The computer is on but not responding on page 69.
●Run a virus scan. For information about using the antivirus resources on the computer, refer to Securing your computer and information on page 50.
68 Appendix A Troubleshooting and support