Windows: How to Copy Only New Files and Changed Files With XCopy on Windows

Set SourceDir=”D\My Source\stuff”
Set TargetDir=”F:\My Backup\stuff”
xcopy %SourceDir% %TargetDir% /i /d /y /e

Credit: https://www.fatihacar.com/blog/how-to-copy-only-new-files-and-changed-files-with-xcopy-on-windows/