Unlike file-based backup (copying Documents and Settings), Acronis True Image creates a sector-by-sector snapshot of the entire drive. This includes the operating system, registry, installed programs, hidden partitions, and boot sectors. If your drive died, you could slap in a new empty HDD, boot from the Acronis Rescue Media, and 20 minutes later, your PC was identical to the day of the backup.
Acronis True Image Home 2011 Build 6868 remains a "classic" in the tech world—a reliable, no-nonsense backup utility for those who prefer local storage and total control over their system images.
: Requires at least 512 MB of RAM, though 1 GB RAM is required if you plan to use the "Nonstop Backup" feature.