Windows 10: why does win 10 shut down at sign in screen

why does win 10 shut down at sign in screen?

:)

 

different lock screen and sign in screen?

Step 2b is labeled as Change the Login Screen Image, but the steps show you how to change the Lock Screen image. Step 2a is irrelevant. It only tells you how to change the desktop background.

What I want to do:
Set Spotlight as the LOCK Screen Image(s) - Done
Set the Win 10 Hero Image as the SIGN IN Screen Image - This is the one that shows after you click on the lock screen and you are able to type your password. If I uncheck "Show Lock Screen Image on Sign In Screen", it shows a solid blue background behind my Password box and user image. This is what I want to change to the Hero Image....

 

win 10 update leaves vertical pink line on screen

today i applied latest win 10 update and now i have a vertical pink line on screen, it remains on every screen. i have tried these fixes

Step 1: I suggest you to run SFC scan,
System File Checkeris a utility in Windows that allows users to scan for corruptions in Windows system files and restore corrupted files.

Follow the below steps:

• Right click on the Start button, click on
  Command Prompt (Admin).
• Type “sfc /scannow” without the quotes and hit
  Enter.
• After the scan, restart the computer and check for the issue.

Step 2: Also, I suggest you to update the display drivers and check.

Steps to Update the Display Adapter driver.

• Press Windows key + Xkey when you are at desktop.
• Select Device Manager.
• Expand Display Adapter.
• Right on the Display Adapter and click on
  Update driver software

BUT i still have the line on screen.

 

Cannot sign in to Windows 10

Hi Riley,

Corrupted user profile may have caused the issue you're experiencing with signing in to your computer. To check if that is really the case, we suggest that you start your computer in safe mode. To do that, you can refer to the steps in this

article. Since you cannot get past to the screen with date and time, you may have to force a shut down and reboot twice to get to the screen that offers you to restart in safe mode. You can perform the following steps to do that:

• Shut down your computer using the power button.
• Reboot, then wait for manufacturers logo to appear.
• Shut down your computer again using the power button.
• The Advanced Startup Options (ASO) menu should appear. If not, continue to repeat the on/off process.
• Follow the instructions on how to start in safe mode listed in the article we provided.

If you're able to boot into safe mode, we suggest that you create a new user account by following the steps under the
Create a new local administrator account section of this
article.

If you have already started reinstalling Windows 10, we'd like to know how it goes and if it corrected the issue.

Keep us informed about the status of your concern.