Windows 10: black screen after import C:\Usrs\Default\NTUSER.DAT and rebooting

hi, one day i opened regedit and imported C:\Users\Default\NTUSER.DAT to registry. things were not working properly after that . after rebooting, i got a black screen and desktop and taskbar was not working. i tried to check if shell key had problem. it didnt have any problem and my pc was not working properly. i had to reset my pc. but how do i resolve this ?

:)

 

Associate .dat files to NotePad

Hi Rick

Right click a dat file, choose 'Open With' - Choose Another App

Important - Check the box marked 'Always use this app to open dat . . .'

If Notepad is not in the list, scroll to the bottom and click 'More Apps'

Again if Notepad is not in the list, at the bottom, click 'Look for another app on this PC', then navigate to find the Notepad application in C:\Windows\System32

 

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 One of these is due to outdated or incorrect device drivers.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.

 

black screen

Hi Bart,

It is possible that you're experiencing black screen due to corrupted system files. To assist you better, we'd like to gather more information:

• Are you getting any error messages?
• What happen when you tried to login?
• What troubleshooting steps have you done so far?

In the meantime, we suggest that you follow the steps in this
article to troubleshoot black screen errors. You can choose which situation you're experiencing the error and perform the instructions.

Let us know if you need further assistance.