I press the power button, power light is on. I can hear the sounds but the screen is black

[Huseyin34]

I press the power button, power light is on. I can hear the sounds that shows system is working but the screen is black. 

[VikramTheGreat]

Hi @Huseyin34,

Welcome to the HP Support Community.
 

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

I understand you have trouble with the HP Pc where the PC boots; however, the Screen is blank. Please make sure to connect the PC to an external monitor to see if you can get a display or not. 

 
While trying oty check with the External Monitor, please try the below step and let me know how it works.

BIOS Restore :
1) Shut down the computer, keep the  charger plugged in
2) Hold down the Windows and B buttons together while the computer is still turned off.  
3) Turn on the computer and continue to hold the Windows and B buttons until a BIOS Recovery screen appears.  
4) Follow the on-screen instructions and click on OK.
 

I hope this helps.

Take care and have a good day.

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

VikramTheGreat

HP Support