Blank screen

[Vicdy]

I have an Hp Pavilion all in one computer. It was working fine yesterday but the electricity was off and on here several times during the night. This morning I can hear it trying to start but all I have is a blank screen.

[Rainbow23]

Hi @Vicdy,

Welcome to HP Support Community. This is a great place to post questions and find answers.

Thank you for posting your query, I will be glad to help you.

I see that you are facing black screen issues with your HP All-In-One - 20-C410.

Please follow the steps listed below for BIOS recovery:

1. Turn off the computer and keep the power adapter plugged in.

2. Press and hold the Windows key and the B key at the same time, and then press and hold the power button for 2 to 3 seconds.

3. Release the Power button but continue pressing the Windows and B keys. You might hear a series of beeps.

4. The HP BIOS Update screen displays and the recovery begins automatically. Follow any on-screen prompts to continue the startup to complete the recovery.

You may also check the link: https://support.hp.com/us-en/document/ish_3966820-3438449-16 

Let me know if this helps and have a nice day ahead.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[Williamjoe]

Solutions for a black screen of death — before logging in
Optimize your startup applications.
Check your cables and connections.
Unplug all unnecessary accessories.
Try a BIOS/UEFI reset and check the boot order.
Launch a Windows repair. 
Boot into Safe Mode.
Roll back or update all drivers in Safe Mode.

Regards,

Will