Manual mode can be useful if you need to change the disk partition layout. If the backup contains a BIOS system, then boot the bootable media in BIOS mode if the system is UEFI, then ensure that UEFI mode is set. It is recommended that the boot mode matches the type of the system in the backup.
If you use an UEFI computer and you decided to start the cloning procedure under bootable media, please pay attention to the boot mode of the bootable media in UEFI BIOS. Before you start, we recommend that you read general information about Disk cloning utility.
