Laptop crashed only LCD light comes on, but it starts up normal. HELP NEEDED ASAP

I was typing an assignment when my pc suddenly froze and produced this loud noise, which lasted for about 30sec. It then went to a bright blue screen telling me my PC has crashed and will restart soon. It loaded to 100% then restarted, but the screen came up black; only the LCD light is present. It runs normal as the screen blinks as it would after the HP screen loads on boot up, and all the lights are on. Furthermore, I use the finger print scan to log in and it works as I can hear my Skype login. I tried the hard reset and nothing. I tried HDMI and it worked. However, I foolishly uninstalled the graphics from device manager thinking that it would reinstall upon reboot and solve my problem: it didn't. Now I have a blank screen and I can't use HDMI as I uninstalled the graphics thing. When I press f4 the screen doesn't do anything, it doesn't source to external physically output. I can't even adjust screen brightness anymore and I previously could before I deleted the graphics. I am out of ideas. Please help me. My assignment is due a day from now and I need to complete it. :cry:

Update. I was able to use Windows narrator to enable the graphics an now I have HDMI access again. I am currently using my T.V. as monitor to get my work done. If anyone can tell me what to do about the blank screen it would be greatly appreciated.

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