Windows 10 Pro - Corporate Branding

Here's our batch file we deploy as an application through SCCM. img100.jpg should be your custom image and in the same directory as the batch file. This overwrites the default images because there isn't just one way to do this depending on the build.

"\Windows\Web\Screen\custom_win10.jpg" is used by a GPO with the Computer > Admin Templates > Control Panel > "force a specific default lock screen and logon image" set

@ECHO OFF
C:
takeown /F C:\Windows\Web\Screen\ /R /A /D Y
ICACLS C:\Windows\Web\Screen\ /grant Administrators:F
ren \Windows\Web\Screen\img100.jpg img106.jpg
copy /B img100.jpg \Windows\Web\Screen\
copy /B img100.jpg \Windows\Web\Screen\custom_win10.jpg
cd \ProgramData\Microsoft\Windows
takeown /F SystemData /R /A /D Y
del /Q /F SystemData\S-1-5-18\ReadOnly\LockScreen_Z\*.*
del /Q /F SystemData\S-1-5-18\ReadOnly\LockScreen_P\*.*