Whether you're backing up your desktop(s) for archival, preparing for disaster recovery or just re-formating a PC, it's inevitable that you will need a good backup solution in your Windows environment. Here's a short list of common ones you may want to look into:
Depending on your needs, some of these have personal free or demo downloads available. Although, I've used or seen most of these in action, the 2 most widely used i business/corporate with support for both multicast & unicast are Ghost and Acronis True Image.