HP Notebook PCs - Computer Starts but Screen Remains Blank (Windows 10, 8)

• If the computer does not turn on (no lights or sounds) or the screen displays an error message, go to Computer Does Not Start (Windows 10, 8)
• If after entering your password a blank screen displays with a blinking cursor, go to Black or Blank Screen with Blinking Cursor after Entering Windows Password
• If the computer does not turn on and LED lights blink or you hear beeping sounds, go to Computer Does Not Start and Emits an LED or Beep Code

1. Connect an external monitor to the notebook. For instructions, see Connecting a Monitor, Projector, or TV (Windows 10, 8).
2. If the computer screen does not display on the external monitor, press F4 (or the key with this symbol ) until the screen image displays.
3. If an image displays on the external monitor, there might be a graphics driver conflict with the notebook LCD display. With the external monitor connected, go to HP Customer Support - Software and Driver Downloads. Download and install the latest graphics and chipset drivers for your specific computer. If an updated BIOS version is available, see Updating the BIOS for steps to install it.

• If the screen is still black after updating the chipset and graphics drivers and BIOS, the LCD might be defective. Contact HP for technical assistance or send the notebook for service.
• If you can hear sounds of operation but no image is visible on either display, go to the next step.

1. Turn off the computer.
2. Connect the notebook to a power source using the power adapter.
3. Press and hold the Windows key and the B key at the same time while the computer is off.
4. While still pressing both keys, hold down the Power button for one second, and then release the Power button and the keys.
   The power LED light remains on, and the screen remains blank for about 40 seconds. You might hear beeping sounds. Afterwards, an HP BIOS Update screen displays, and the BIOS update begins.

note:

Removing and reseating memory modules requires the use of tools to partially disassemble the computer. If necessary, take the computer to an HP authorized service provider for technical service.

1. Turn off the computer, and then disconnect the power cord.

     caution:

   Electrostatic discharge (ESD) can damage electronic components. Before beginning any procedure, touch a grounded metal object to discharge static electricity.

2. Remove the cover to access the memory.
   Your computer might look different than the computer in the graphic.

   note:

   Some computers might not have a cover that provides access to the memory. Have the computer serviced if you cannot access the memory.

   
   
   1. Retention screws (2)
   2. Direction to remove compartment cover
3. Remove memory modules in the computer.
   
4. Reinsert all memory modules.
   
   1. Notch alignment
   2. Direction to insert the module
   3. Direction to seat module
5. Replace the cover, battery, and power cord.
6. Turn on the computer.
7. Perform any tests to verify that the computer can start up and run in the Windows operating system.
   If the computer fails to boot to the Windows desktop, contact HP for support.