At what point does the display show this... such as is it right away or do you see the HP Logo and then Windows starts to load and then this?
If you never see the HP logo at boot or any boot info at boot if the logo is set to not display and it goes direct to this, then it could be a cooked GPU or APU, or main board failure. RAM could sometime also cause this because system RAM is shared with GPU but i'm thinking it might be a hardware failure or damage.