How to troubleshoot a computer that won't turn on

If your computer does not turn on—you press the power button and no lights appear, and there are no beeps or other sounds—you should: 1.Verify that your computer's power cord is connected. 2.Unplug your computer and connect a different electrical device (such as a lamp, a fan, or a radio) into the same electrical outlet. If the device does not work, the problem is the electrical outlet, not the computer. 3.Contact technical support for further troubleshooting assistance. Most likely, the computer's power supply has failed. While replacing a part is a nuisance and may be costly, your documents, pictures, and e-mail should be safe and will be there when your computer is fixed.