Cloning is used primarily to create a bootable copy of your internal macOS hard drive. To make the best clone, please follow these instructions:
Erase the Destination Volume with Disk Utility
First, open Disk Utility from your Applications > Utilities folder. Select the volume to be used from the left column and use the Erase option at the top to format the disk. (Note: Erasing a volume will delete ALL content from the device. Make sure you have chosen the correct destination before confirming this choice)
The format should be APFS:
Name the volume and select Erase to complete the process.
Reboot Your Mac
Launch the Cloning Process Called Bootable Backup
Once your Mac has restarted, open Personal Backup from the Applications > Intego folder and select the task option called Bootable Backup from the top of the window.
About the Cloning Process
Personal Backup X9 makes a clone in two steps:
A comparison is made of the source and destination in order to define which files need to be copied to the destination.
This is when files are actually being moved to the destination.
Personal Backup X9 may report errors after the process has completed. These errors are caused because some files have disappeared from the source between the preparation and the copy process (temporary files created by the system, hidden files created by some applications, or expired cookies...). This is why it is important to quit all applications if possible, except Personal Backup.