Go to menu “Start” and select “Run”

Then type “Regedit” to open the registry.

Once registry open, select the HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\policies
If the file does not exist, click on “Edit” > New > Key. Then name the file as “policies” and validate
Then right click on the new file “policies” and select “New” > “KEY” which you will name as “ActiveDesktop”.
In the right part of your windows registry, select the value “DWORD” and name it as “NoChangingWallPaper” and the DWORD value as 1.
The DWORD value 1 will restrict change in desktop wallpaper. To reactivate change , put the value as 0.
