Black Screen with cursor, control alt delete does not work, save mode does not work, system restore doesn’t work, nothing works !!Please I need help

hello there i might sugest trying to press shift key 5 times 

does a window pop up? if yes do reply to me!

this aint a bi issue tis appens when the registery is corrupt maybe you ave downloaded malware or you messed up te reistery or always use forse restart/shutdown??

How, cuz I cannot log in

Thanks for the feedback.

No. When you get to the option:

Reinstalling the system maintenance files.

Select Troubleshooting> Restore your PC> Keep my files.

1-click troubleshooting.

2-Click on Restore your PC.

3-Click on Keep my files.

I await news.

How, cuz I cannot log in 

The first step consists of getting the items I mentioned.

The second step consists of preparing the USB flash disk on another Windows PC. I'll post the instructions as soon as you are ready.

The third step consists of saving your data. This is often a challenge to the inexperienced because you must boot the problem PC with the USB flash disk.

Hello how are you?

Welcome to the Microsoft Community!

My name is Luciano L., I am an independent consultant, I am here to help you in the best possible way.

It is a pleasure to help you today. I'm sorry that you have to deal with this. I know how frustrating it can be for you. I will do my best to help you :)

This is an open community, whenever you need you can share the problem so that possible repairs are suggested.

Since the operating system is not starting, it is best to try to fix system errors using the Windows 10 media.

Media creation tool

To download the tool and create a boot disk from another computer, use the link:

https://go.microsoft.com/fwlink/?LinkId=691209

When downloading, accept the license terms, after clicking on the option Create installation media for another computer. Disable the Use the recommended options for this computer option and click Next after selecting:

1- Language: (Your local language).

2-Edition: (Select the Edition of your System) - If it is Windows 10 Home or Professional, select Windows 10, being Windows 10 Home Single Language, choose Windows 10 Home Single Language (You will find the Edition information in your Equipment Manual)

3-Your processor architecture: 32-bit or 64-bit

There are 02 options to Download Windows 10

Flash Drive (Pendrive): Before selecting this option, format the Pendrive.

ISO file: Upon completion, software that burns DVD will be required.

After you have the Windows 10 Media or Pendrive, follow the next procedure:

1. Insert the DVD or Pen drive with the installation of Windows 10;
2. Make the equipment start the boot through it; (If you do not know how, check in the equipment manual how to change the boot order to start with the DVD or Pen drive, as you use it).
3. As soon as the Windows installation screen loads, click Next and the Repair button will be available;

To perform a System Restore to the Previous Point.

Select Troubleshooting> Advanced Options> System Restore, then check for Previous points. A date on which your Operating System functioned normally.

Fix startup errors

Select Troubleshooting> Advanced Options> Startup Repair, and so wait until it is possibly fixed.

Reinstalling the System Keeping Files.

Select Troubleshooting> Restore your PC> Keep my files.

1-Click Troubleshooting.

2-Click Restore your PC.

3-Click Keep my files.

Note: We advise you to make a backup of your files on a mobile device as something like interruption of the update, lack of power, loss of signal from the internet, among others, may occur.

I await news.

If these procedures helped you in any way, please click on "I solved my problem" and also mark as an answer, so you can help other people.

We are always available!