Troubleshooting
- How do I get help?
- Why doesn't the disk usage on my backup disk match the disk usage on the source disk?
- External Boot Troubleshooting
- Why do some applications behave differently or ask for the serial number after restoring from the backup?
- Identifying and Troubleshooting Hardware-Related Problems
- Keeping CCC up to date
- Uninstalling CCC
- CCC reported that the destination is full. What can I do to avoid this?
- Antivirus software may interfere with a backup
- What criteria does CCC use to determine if a file should be recopied?
- "CCC found multiple volumes with the same Universally Unique Identifier"
- Finder or App Store finds other versions of applications on the backup volume
- "The task was aborted because a subtask did not complete in a reasonable amount of time"
- Troubleshooting slow performance when copying files to or from a network volume
- Where can I find CCC's log file?
- Why can't I eject the destination volume after the backup task has completed?
- Some third-party storage drivers may cause hardware misbehavior
- Coping with errors caused by APFS filesystem corruption
- macOS-Specific Issues That We're Tracking
- Troubleshooting APFS Replication
- Preserving Finder comments and tags
- Character composition conflicts on NAS volumes