1) Download BgInfo, and unzip the file to C:\Windows
2) Open BgInfo and adjust the configuration to meet you needs, then save it to C:\windows\bg.bgi
3) Create a bat script file C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\bginfo.cmd
@ECHO OFF
%systemroot%\bginfo /i%systemroot%\bg.bgi /timer:0 /nolicprompt /silent