Windows 10: Why does my pc go black and restart the sign in process every time?

Everytime I try and login to my pc, It goes black quickly and back to the start. I’ve tried a different account, different ways to login. I’ve tried loading into safe mode. I’m not sure what to do

:)

 

How to troubleshoot an error that appears only at Restart or Sign out?

I get an error pop-up error message not every, but almost every time I Restart or Sign out. It's the screen with blue background and on top of Restart or Sign out text an error window says:

Explorer.exe - Application error. The instruction at 0x000… referenced memory at 0x000... The memory could not be written.

Sometimes the error code is just zeros, sometimes random numbers. I have tried so much already to troubleshoot this. For example these did not help in any way:

• MemTest86+ (no problems)
• Disabling any Services, Autoruns/ShellExView entries
• Low resolution mode
• BIOS settings are fine, no overclocking etc.
• DISM.exe and sfc
• etc.

However, these do make the error go away:

• End process for explorer.exe before Restart or Sign out
• Safe Mode
• Creating a new user profile (almost the same as clean installing Windows, many full days of work)
• Uninstalling NVIDIA graphics driver (then the card is unusable, of course)
• Disabling Device Manager / Display Adapters / NVIDIA GeForce GTX 1080

I already contacted NVIDIA and the graphics driver is not the culprit. Something has gone wrong with the user profile as the same driver works just fine in a new profile (and there's nothing wrong with the driver anyway, it's just the Restart or Sign out process that has a problem).

What can I do to fix this? One useful thing would be to have a step-by-step procedure for the Sign out. So that it'd ask before continuing to the next step and list what it's doing. Or if I could just disable whatever it does when the error appears.

 

Windows 10 infinite restart black screen


Black screen after sign-in and you can see a mouse cursor:


Unplug your external devices

When you are at the black screen, try unplugging any peripherals you have plugged in at the time, and wait for a moment. If your screen becomes visible again, plug the peripherals back in one at a time.

Use Safe Mode

If unplugging peripherals not resolve the issue, for each of the troubleshooting steps below, you will need to use Safe Mode to troubleshoot this issue. To enter Safe Mode:

1. Reboot the PC, and when you reach the sign-in screen, hold the Shift key down while you click the Power button and select Restart.
2. When the system reboots, you will enter the Windows Recovery Environment.Select Troubleshoot, and then Advanced options, then Startup Settings, and Restart. When it restarts, you should see a number of options. Press 5 or F5 for Safe Mode with networking.

Reinstall your graphics card driver:

1. Once you’ve entered Safe Mode, right-click the Start icon and select Device Manager.
2. Expand Display Adapter.
3. Right-click your display adapter and select Uninstall. Then reboot your PC.

Check the registry

You may also see a black screen after signing in if the user interface has been replaced with software that is incompatible with Windows 10. You can check this in the registry. Warning: This solution will modify the registry. Serious problems might occur if you modify the registry incorrectly. Prior to attempting these steps, you should backup the registry for restoration in case problems occur.

1. Once you’ve entered Safe Mode, right-click the Start icon and select Run.
2. Type regedit.exe into the Open text box and click OK.
3. Navigate to the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
4. Click to select the WinLogon key, and then, in the right pane, click Shell. The value of Shell in the Data column should be explorer.exe. If the value of Shell isn't explorer.exe, double-click Shell, and then, in the Value data text field, enter explorer.exe, and then click OK.
5. Close the Registry Editor and then restart your PC.
   
   

Check for a corrupted user account

There could be a problem with the user account. To test this, create a new administrator user account and check if the new account also boots to a black screen:

1. Once you’ve entered Safe Mode, right-click the Start icon and select Command Prompt (Admin).
2. In the Command Prompt window, type the following commands (changing “<password>” to something of your choice):
   
   net user test <password> /add
   net localgroup Administrators test /add

Provided by: Sharath Srinivasa, Microsoft Forum Moderator.

See if any of this works for you,
John

 

Just upgraded to win 10: black screen white cursor.

Hi Karla,

I appreciate your efforts and time.

• Are you able to sign in?
• When you resetting drivers, have you dried re-installing display drivers in Safe Mode?
• Did you try to get to Safe Mode using the steps provided in the support link?

I suggest you to try the steps provided below and check if it helps.

If yes, then select Yes, I am signed in.

Troubleshooting black or blank screens in Windows - Microsoft Support

To get to Sage Mode from the log in screen.

• Restart your PC. When you reach the sign-in screen, hold the Shift key and select the Power button, and then select
  Restart.
• After your PC restarts, select Troubleshoot > Advanced options
  > Startup settings > Restart. After your PC restarts, you should see a number of options. Press 5 or F5 for
  Safe Mode with networking.

Hope this helps in resolving the issue with black screen error . If the issue persists, do get back to us. We will be happy to assist you.

Thank you.