--use_registry_defaults
The parameter is used with the backup and recovery commands, except for recover mbr. It determines the values of backup and recovery options that are not explicitly specified in a command string.
If the parameter is specified, the software will use the default values of backup and recovery options set in the graphical user interface of Acronis Backup & Recovery 11.5. These values are stored on the machine with the agent that performs the command. On a machine running Windows, the values are stored in the registry; on a machine running Linux, the values are stored in the Acronis Backup & Recovery 11.5 configuration files.
If the parameter is not specified, the software will use the default values described in this Command-Line Reference. These values are contained in the command-line utility code.