Two layers. 1. Deepsoftware's StorageCraft - Backup of the c:\ drive, including boot sector. Backup of the D:\, E: & F:\ drives. Does a full backup every Sunday and incremental backups every 3 hours the PC is turned on. Backup 'files' are held on a NAS. I have a boot CD & thumb drive in case of the unthinkable. 2. AJC's Active Backup - Real time backup of the D:\, E:\ & F:\ files as the are saved after being changed in some manner. This supplements the StorageCraft's backups. Backup files are held on a separate SSD. HTH Regards, Ian