Windows 10: Computer lock screen was changed and required a new sign in

I turned on my computer tonight and instead of my usual lock screen, the screen had a Microsoft outlook sign in prompt for a password I use a pin to sign in. I tried what I thought was my outlook password but it was rejected. I requested to change my password - exchanged a couple of emails with an account that purports to be from the Microsoft account team. I went ahead and changed my password and this allowed me to log on. After I logged in with the new password there was a brief update type screen and then my regular screen appeared. However, looking back I am concerned that this was perhaps some elaborate phishing scheme. Has anyone else experienced this recently? Should I be concerned about the security of my accounts and computer?

:)

 

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....

 

unable to change the lock screen Wallpaper.

Hi,

I appreciate if you could answer few questions to narrow down to the issue.

• 
  What is the exact issue that you are facing?
  
• 
  Are you facing issues while trying to change the lock screen Wallpaper?
  
• 
  Are you not able to choose the directory where the wallpapers has been saved?
  

As an initial troubleshooting step, I suggest you to restart the computer and check if you are able to successfully change the lock screen wallpaper.

• 
  From Desktop, right click and select
  Personalize.
  
• 
  In Personalization window, click on
  Lock Screen in the left pane.
  
• 
  And choose wallpaper you would like to apply for the lock screen by choosing the browse option.
  
• 
  Close the Personalization window.
  

If the issue still persists, please do reply with the required information. We will be glad to assist you.

Thank you.

 

Lock Screen Randomly Changes

Hi John,

Welcome to Microsoft Community and thank you for your interest in Windows 10.

I suggest you to go to the lock screen settings and disable the automatic lock screen change and check if the issue persist.

To test the issue I suggest you to create a new user account and restart the computer and check whether you can find other new user account.

I suggest you to create a new user account and check if the issue occurs.

• Go to Settings.
• Choose Accounts and then select Family and other users.
• Select add someone else on this PC.
• Enter a user name and hit next.
• Click on Finish.
• Sign out from the current Account and Log into the new account.

Hope this information was helpful and do let us know if you need further assistance. We will be glad to assist.