Robocopy "ERROR 123 (0x0000007B) Accessing Source Directory xxx The ... Robocopy "ERROR 123 (0x0000007B) Accessing Source Directory xxx The filename, directory name, or volume label syntax is incorrect." Ask Question 0 I'm using robocopy on a Windows10 computer without any problem. I copied my bat file to a windows11 computer and can't make it run because of this error: