Windows 10: How to fix black screen without any functionality on the laptop

My laptop has a black screen without the laptop functioning at all. when i boot it up only the keyboard lights up and nothing on the screen at all. The caps lock button also doesn't light up when I press it. how do I fix this?

:)

 

Black Screen after Log on

Laptop or Desktop (Very important) Windows 10 build 14.586 has a very annoying BUG: That causes Black Screen after login:
To date there is no cure until Microsoft send Update to fix the problem: OK here goes: When you Login and the Screen Goes Black ==>
Go to your Function Keys for Screen Brightness Chose to Lighten the Screen (This will make the screen Bright) so that you can view it.
The BUG is that they reversed (via Software) what the Brightness button does -- So it is currently reversed -- "Lighten" makes it Dark -- "Darken" makes it Bright ==> Go figure Microsoft screw the pooch on this one. . . .

This is for LAPTOP -- I have never seen this on Desktops but they are fixed rather than adjustable

 

Black screen error

Hello,

There are several reasons why you are facing a black screen issue. One of these is due to outdated or incorrect device drivers. For us to figure out what's causing this, provide more details by answering the listed questions:

• Can you confirm to us if you are using a laptop or a computer?
• Have you made any recent changes to your device prior to this happening?
• What exactly were you doing when the error occurred?
• Have you tried any troubleshooting steps to resolve this? If yes, specify all of the steps that you have done.

As an initial part of troubleshooting, we suggest following the steps given on this article:

Troubleshoot black screen or blank screen errors. This will help you diagnose and rectify most of the known black screen concerns.

We will wait for your response.

 

Toshiba Laptop Black Screen

I have a Toshiba Laptop, Was reinstalling windows 7 on it last night left it doing the updates then shut it down. Turned it on this this afternoon only to find the laptop screen is Black and also there is a burning smell coming from the Fan.

I connected the Laptop to a external monitor that is fine, Can go into bios, Windows boots up fine Etc.
Just took apart the laptop earlier to check all the cables where in correctly, Checked the motherboard over for any damage, burnt bits but but found nothing. Just put it back together now but im still getting this burning smell and i still cant use the laptop screen only a external screen.

I Tried Pressing FN+F5 to switch to the laptop screen, But still black screen. Any Suggestions please ?

Thanks