I’m using 32 threads in my example, as I found it to be a good starting point. My command is now: Robocopy "C:UsersGreg Shultz" "F:TheBackup" /MIR /XA:SH /XD AppData /XJD /R:5 /W:15 /MT ...

For example, if you want to copy all the subfolders along with the empty ones, you can use the /s parameter. Yes, Robocopy is a Microsoft tool. It is a command-line tool and comes with Windows 11/10.