SyncToy 2.0 for Windows is available as a free download from the Microsoft Download Center. The easy to use, customizable application helps you copy, move, rename, and delete files between folders and computers…SyncToy, a free PowerToy for Microsoft Windows, is an easy to use, highly customizable program that helps users to do the heavy lifting involved with the copying, moving, and synchronization of different directories. Most common operations can be performed with just a few clicks of the mouse, and additional customization is available without additional complexity. SyncToy can manage multiple sets of folders at the same time; it can combine files from two folders in one case, and mimic renames and deletes in another case. Unlike other applications, SyncToy actually keeps track of renames to files and will make sure those changes get carried over to the synchronized folder.
This is one of my favorite Cool Tools!
See here for download and info: SyncToy v2.0
See here for announcement and fixes list: SyncToy 2.0 – Released to Download Center
See Creating Backups With SyncToy for a how-to.