Netro: Backup

Back up and restore your PC
Back up and restore your files
Backup and Restore in Windows 10

JDiskReport Analyse disk usage.
Windows NT (Backup) Restore Utility for Windows 7: Restore Windows XP and Server 2003 backups.
Windows Easy Transfer for transferring from Windows XP (32 bit) to Windows 7
SyncToy 2.1 (Windows 7): Synchronise files and folders between locations.
Wikipedia: SyncToy

Related links
Backup Hardware