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What's New
- macOS Big Sur Known Issues
- macOS Catalina Known Issues
- What's new in CCC 5?
- System Requirements for Carbon Copy Cloner
- Upgrading from Carbon Copy Cloner 3.5 to Carbon Copy Cloner 5
- Carbon Copy Cloner 5 Release Notes
- Credits
- Everything you need to know about Carbon Copy Cloner and APFS
- Working with APFS Volume Groups
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Downloading, Installing and Registering CCC
- How do I download and install Carbon Copy Cloner?
- System Requirements for Carbon Copy Cloner
- Upgrading from CCC 4 to CCC 5
- Upgrading from Carbon Copy Cloner 3.5 to Carbon Copy Cloner 5
- How to Manually Enter a CCC Registration Code
- Trouble Applying Your Registration Information?
- How to Register CCC in One Click
- How do I use one license of CCC on multiple Macs in my household?
- Oops, that license code is invalid...
- I already purchased CCC but can't find my registration code. Can you send it to me?
- Migrating CCC tasks from one system to another
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Using CCC
- How to set up your first backup
- How to verify or test a bootable backup
- How to restore from your backup
- How to set up a scheduled backup
- How to modify a scheduled backup
- Monitoring backup tasks with the CCC menubar application
- Configuring Email Notifications
- How to find out when a backup last ran: CCC Task History
- Protecting data that is already on your destination volume: The Carbon Copy Cloner SafetyNet
- The Disk Center
- Cloning Apple's Recovery HD partition
- Simple Mode
- Leveraging Snapshots on APFS Volumes
- Notes for VoiceOver users
- Granting Full Disk Access to CCC and its helper tool
- Cloning macOS System volumes with Apple Software Restore
- Creating and restoring data volume backups
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Sample Usage Scenarios
- I want to clone my entire hard drive to a new hard drive or a new machine
- I want to back up my data to a Time Capsule, NAS, or other network volume
- I want to back up multiple Macs or source volumes to the same hard drive
- Can I run a backup while I'm using my computer? If I have open files, will they be backed up?
- Can I back up one computer and use the clone to restore another computer?
- I have a clone created by another application. Will CCC recognize that data, or will it want to recopy everything?
- Can CCC back up my BootCamp (Windows) partition?
- Can I use Carbon Copy Cloner to clone a Time Machine backup?
- Cloning one external hard drive to another external hard drive
- Restoring an item from a hidden folder
- Folder-to-Folder Backups
- Backing up and restoring Finder's Trash
- Refining the scope of a backup task
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Troubleshooting
- macOS Big Sur Known Issues
- macOS Catalina Known Issues
- How do I get help?
- The disk usage on the destination doesn't match the source. Did CCC miss some files?
- Help! My clone won't boot!
- Some applications behave differently or ask for the serial number on the cloned volume. Did CCC miss something?
- 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
- Launchpad ignores settings created while booted from another 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?
- Why does Finder prevent me from viewing the home folder on my backup when it's attached to another Mac?
- Some third-party storage drivers may cause hardware misbehavior
- Troubleshooting APFS Replication
- Coping with errors caused by APFS filesystem corruption
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Advanced Topics
- Excluding files and folders from a backup task
- Advanced Settings
- Performance Suggestions
- Working with FileVault Encryption
- Some files and folders are automatically excluded from a backup task
- Performing actions Before and After the backup task
- Restoring non-system files
- Backing up to a disk image
- Restoring from a disk image
- I have a full-volume backup in a folder or a disk image, but I don't have a bootable backup. How can I restore everything?
- Using Carbon Copy Cloner to back up to/from another Macintosh on your network
- A caveat for backing up to a remote Macintosh that has no user logged in
- Restoring from a backup on a remote Macintosh
- Task Organization
- I want to defragment my hard drive
- Frequently Asked Questions about encrypting the backup volume
- Frequently asked questions about scheduled tasks
- Frequently asked questions about the Carbon Copy Cloner SafetyNet folder
- Frequently Asked Questions about cloning Apple's “Recovery HD” partition
- Using the ccc Command Line Tool to Start, Stop, and Monitor CCC Backup Tasks
- Backing up databases on OS X Server
- Backing up large files, mounted disk images, and Virtual Machine containers
- Automated maintenance of the CCC SafetyNet folder
- “My disk is already formatted APFS or HFS+, why am I getting this warning?“
- Backing up to/from network volumes and other non-macOS-formatted volumes
- A closer look at how CCC determines the “bootability” of a destination volume
- Cloning Coach Configuration Concerns
- Configuring Scheduled Task Runtime Conditions
- Modifying CCC's Security Configuration
- Creating a separate task to prevent VM container versions from bloating the SafetyNet
- Outgoing network connections made by CCC
- When I boot from my backup, Little Snitch reports that its rules have been replaced by a different version. Why, and how can I avoid this?
- Limitations of online-only placeholder files
- What is CCC's Privileged Helper Tool?
- Downgrading an APFS-formatted Fusion volume from Mojave
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Frequently Asked Questions (FAQ)
- Glossary of Terms
- The disk usage on the destination doesn't match the source. Did CCC miss some files?
- I want to back up multiple Macs or source volumes to the same hard drive
- Some applications behave differently or ask for the serial number on the cloned volume. Did CCC miss something?
- Can I run a backup while I'm using my computer? If I have open files, will they be backed up?
- Can I back up one computer and use the clone to restore another computer?
- Identifying and Troubleshooting Hardware-Related Problems
- I have a clone created by another application. Will CCC recognize that data, or will it want to recopy everything?
- Can CCC back up my BootCamp (Windows) partition?
- CCC reported that the destination is full. What can I do to avoid this?
- Can I use Carbon Copy Cloner to clone a Time Machine backup?
- Frequently Asked Questions about encrypting the backup volume
- Frequently asked questions about scheduled tasks
- Frequently asked questions about the Carbon Copy Cloner SafetyNet folder
- Frequently Asked Questions about cloning Apple's “Recovery HD” partition
- Can I run backup tasks while my system is on battery power?
- Can I run my backups more frequently than Hourly?
- System problems can lead to a failure to install CCC's helper tool
- The legacy SafetyNet folder is not used when snapshots are enabled on the destination
- Why does CCC say that my Mac is booted from a backup volume?
- Frequently asked questions about CCC and APFS Volume Groups
- Frequently asked questions about CCC and macOS 11