Windows 10: Why did my wallpaper picture change?

My wife and I both have Windows 10 Accounts. I access my account on my desktop. She accesses her account on her laptop.


This morning when I left I had my American Flag wallpaper on my desktop. I left the computer (did not log off) and came back at 12:30 to find a picture of my granddaughters on my screen. This is my wife's wallpaper. She, on the other hand, has seen my American Flag wallpaper on her laptop from time to time.


The only common link is that I also have an account on her laptop on which I have not logged for several months.


This is not the first time we have switched wallpapers. What else is being "switched?"


IF wallpapers can be "switched" what other information is being shared between different accounts? Is this a security issue that can be exploited?


Why is this happening?

:)

 

Change wallpaper picture

I want to change my wallpaper picture

 

Change wallpaper picture

Yes I would like to change my wallpaper picture.

 

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.