Colorful lines appearing on screen then disappearing

[soljagn]

 

 

my computer keeps having colorful lines appear all over it then it disappears slowly with a little bit of lines still visible. The screen isn't damaged, and it occurs every time when I turn on the computer

[Garp_senchau]

@soljagn, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

Power reset

Turn off the computer.

Disconnect the AC adapter.

Remove any discs from the disc drive.

Remove memory cards from the card reader slot.

Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.

With the AC adapter unplugged, press and hold the power button for approximately 15 seconds.

Reconnect the AC adapter, and then turn on the computer.

Also refer to this guide: HP Notebook and All-in-One PCs - Troubleshooting screen issues (Windows 11, 10) | HP® Support

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Regards,