Many are already familiar with the Robocopy command line utility from Microsoft, bundled with all recent versions of Windows. Robocopy basically provides a good level of granular control over folder copy operations. Since Windows 7 and Server 2008, Robocopy even supports multithreaded copying.
Robocopy has its limitations, however, and I would most times prefer to use a tool with a user interface. This has actually existed since 2006, when Microsoft engineer Derk Benisch created “Robocopy GUI”, but there is an even better alternative around these days…