Windows 10: why does my wallpaper keepon changing to a picture which i have never downloaded

hi,for past few months my laptop background pic changes automatically to this pic below and im not able to find this pic anywhere in my libraries and files , i tried doing some scans but it says its clean according to my memory i have never downloaded this pic i went online to check whats wrong but couldnt find anything hope someone can help me here . plus i tried the background>pictureb mode but still doesnt change anything i use a [lenovo g50-80]

:)

 

Change wallpaper picture

I want 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.

 

Change wallpaper picture

Yes I would like to change my wallpaper picture.