HP WZ223UT manual Quick troubleshooting, Computer is unable to start up, Computer screen is blank

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Product Information and Troubleshooting

Quick 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 resolve the problem:

If the computer is plugged into an AC outlet, unplug the computer and then plug another electrical device into the outlet to be sure that the outlet is providing adequate power.

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 lit, the computer may not be set to display the image on the computer screen. To transfer the image to the computer screen, press fn+f4.

Software is functioning abnormally

If the software is unresponsive or responds abnormally, follow these suggestions:

Restart the computer. Click Start, click the arrow next to the Shut down button, and then click Restart.

If you cannot restart the computer using this procedure, refer to the next section, “The computer is on but is not responding.”

Run a virus scan. For information about using the antivirus resources on the computer, refer to the antivirus software Help for more details.

The computer is on but is not responding

If the computer is on but is not responding to software or keyboard commands, try the following emergency shutdown procedures, in the sequence provided, until shutdown occurs:

ÄCAUTION: Emergency shutdown procedures will result in the loss of unsaved information.

Press and hold the power button on the computer for at least 5 seconds.

Disconnect the computer from external power and remove the battery.

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Getting Started

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Contents Getting Started Subscription Services for Business Notebook User GuidesWindows Users Linux UsersContacting Customer Support End User License Agreement EulaSerial Number Label Information Warranty Information Basic Setup Unpack the boxInsert the battery Connect the computer to external power Open the computer Turn on the computer Set up the software What’s Next? Locating the electronic manualsBacking up and recovering Finding more informationRecovering Backing upTurning off the computer Input power Operating environmentTraveling with the computer Troubleshooting resources Cleaning the displayCleaning the TouchPad and keyboard Routine careQuick troubleshooting Computer is unable to start upComputer screen is blank Software is functioning abnormallyComputer is unusually warm Wireless network connection is not workingAn external device is not working Product Information and Troubleshooting