How to Fix a Dell Laptop That's Not Working
Here are some steps for troubleshooting a Dell that won't turn on, from the most straightforward and most apparent to more advanced fixes:
Check the power supply. If none of the lights on your PC turn on when you press the power button, even when it's plugged into the wall, then you likely need to replace the power supply. Even if the charging light comes on when you plug in your computer, the cable could still be damaged, so check the power supply unit with a multimeter if you have one.
Remove any USB storage devices. Your computer could be trying to boot from the wrong drive. If this fixes the problem, change the boot order to ensure your hard drive is at the top of the list.
Power cycle your Dell laptop. With the computer turned off and unplugged, remove any external devices (USB drives, printers, etc.), then hold down the power button for 15-20 seconds. It will drain any residual power. Next, reconnect the charger and see if your PC powers on.
Remove the battery. If the charging light comes on, but your PC still won't turn on at all, there could be a problem with the battery. Newer Dell laptops don't have a removable battery, but you can replace them yourself if yours does.
Regards,
Will