To enforce a specific image, you must create or edit a Group Policy Object (GPO) and target it toward (Organizational Units containing PCs, not users).

5 Mar 2025 — Table_title: Configure the lock screen background Table_content: header: | Group policy path | Group policy setting | Value | row: Microsoft Learn Changing Lock Screen image for Windows 10 clients using GPO

: Use a DFS or simple SMB share with Domain Computers (or Authenticated Users ) having Read permission.

Path: