Windows 10: Windows 10 - Black Screen not able to Login

I upgraded to windows 10 from 7 through Microsoft's updater.
I used Windows 10 for setting up my calendar, by the time it restarted and

System reboots and ends up in black screen without getting into login page.
I tried to perform to open in safe mode of F8 , it didnt work
Then even try to press control key to check whether it takes to login , didnt happen


Could you please help with some support on it, since i need to access some important document in the laptop

Machine : Del Inspiron

:)

 

Stuck in Grey screen. Windows 10

Hi Lisa,

Is Windows 10 activated?

I suggest you to refer the link below and follow the troubleshooting steps suggested.

Troubleshoot black screen problems.

http://windows.microsoft.com/en-us/windows-10/troubleshoot-black-screen-problems

Do let us know if you are able to login to desktop. Thank you.

 

Problem with login screen

I'm having problems with my windows 10 login screen. Windows boots up fine but when it goes to the black loading screen with the white circle dots going around it freezes. I am not able to login to my computer.

Here is what happens:

http://youtu.be\X-COvrbGq0o