Appearance of pink and green horizontal lines on my laptop screen

[TC72]

My laptop which I purchased just 6 months before all of a sudden started to show a green colour horizontal line at the top of the screen about 4 days before.Now it also have pink lines.Altogether it have 4 horizontal lines...Please help ...

[Echo_Lake]

@TC72

Thank you for posting on HP Support Community.

Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  

• When was the last time it worked without these issues?
• Have you updated Graphics and Chipset drivers?
• Have you checked the display on an external monitor?

let’s try these steps to resolve the problem:

I recommend you attempt to access the BIOS screen by tapping on F10 while the computer is restarting, 

If the issue persists in the BIOS screen which is outside windows, it would confirm a hardware failure.

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.