Computer will not boot up

[SLW863]

My all in one has a fan running but the screen stay black and won’t boot up. I have tried a hard reset but still nothing.

[Deep_World]

Hi @SLW863,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

Sorry for the inconvenience caused don’t worry let me help you.

To better understand the issue, could you please provide a few more details?

• Whether you see any LED lights, beeps, or error codes when powering on.
• If the screen stays completely black or if you notice a faint backlight.
• Any recent changes (updates, new hardware, or power issues) before this started.

In the meantime, here are a few troubleshooting steps you can try:

1. Check Display Connection
   • Ensure the power cable is firmly connected.
   • If your All-in-One has external display ports, try connecting to another monitor to see if the system is outputting video.
2. Perform a Hard Reset
   • Disconnect the power cord.
   • Press and hold the power button for 15 seconds.
   • Reconnect the power cord and try powering on again.
3. Run Hardware Diagnostics
   • Power on the PC and immediately press F2 repeatedly.
   • If diagnostics open, run the System Test to check memory and hardware health.
4. Check for BIOS Recovery

• Press and hold Windows key + B while pressing the power button.
• Keep holding until you hear beeps or see the BIOS recovery screen.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 

Take care and have an amazing day ahead! 

Best regards,

Deep_World