User's Manual
Table Of Contents
- 1 Introduction
- 1.1 What is Acronis® True Image™?
- 1.2 New in this version
- 1.3 Backups created in Acronis True Image 2020 or later
- 1.4 System requirements and supported media
- 1.5 Installing Acronis True Image 2021
- 1.6 Activating Acronis True Image 2021
- 1.7 Trial version information
- 1.8 Upgrading Acronis True Image 2021
- 1.9 Technical Support
- 2 Getting started
- 3 Basic concepts
- 3.1 Basic concepts
- 3.2 The difference between file backups and disk/partition images
- 3.3 Full, incremental and differential backups
- 3.4 Deciding where to store your backups
- 3.5 Using Acronis Nonstop Backup
- 3.6 Backup file naming
- 3.7 Integration with Windows
- 3.8 Wizards
- 3.9 FAQ about backup, recovery and cloning
- 4 Backing up data
- 4.1 Backing up disks and partitions
- 4.2 Backing up files and folders
- 4.3 Backing up mobile devices
- 4.4 Backing up Office 365 data
- 4.5 Backup options
- 4.5.1 Scheduling
- 4.5.2 Backup schemes
- 4.5.3 Notifications for backup operation
- 4.5.4 Excluding items from backup
- 4.5.5 Image creation mode
- 4.5.6 Backup protection
- 4.5.7 Pre/Post commands for backup
- 4.5.8 Backup splitting
- 4.5.9 Backup validation option
- 4.5.10 Backup reserve copy
- 4.5.11 Removable media settings
- 4.5.12 Error handling
- 4.5.13 File-level security settings for backup
- 4.5.14 Computer shutdown
- 4.5.15 Online backup protection
- 4.5.16 Performance of backup operation
- 4.5.17 Selecting a data center for backup
- 4.5.18 Laptop power settings
- 4.5.19 Wi-Fi networks for backup to Acronis Cloud
- 4.6 Operations with backups
- 4.6.1 Backup operations menu
- 4.6.2 Backup activity and statistics
- 4.6.3 Sorting backups in the list
- 4.6.4 Replicating backups to Acronis Cloud
- 4.6.5 Validating backups
- 4.6.6 Backup to various places
- 4.6.7 Adding an existing backup to the list
- 4.6.8 Notarized backup
- 4.6.9 Cleaning up backups, backup versions, and replicas
- 4.6.10 Cleaning up space on Acronis Cloud
- 4.6.11 Removing data from Acronis Cloud
- 5 Recovering data
- 5.1 Recovering disks and partitions
- 5.2 Recovering files and folders
- 5.3 Searching backup content
- 5.4 Recovering Office 365 data
- 5.5 Recovery options
- 6 Archiving data
- 7 Sharing data
- 8 Protecting family data
- 9 Antivirus and antimalware protection
- 10 Vulnerability assessment
- 11 Synchronizing data
- 12 Disk cloning and migration
- 13 Tools
- 13.1 Acronis Media Builder
- 13.2 Making sure that your bootable media can be used when needed
- 13.3 Acronis Startup Recovery Manager
- 13.4 Try&Decide
- 13.5 Acronis Secure Zone
- 13.6 Adding a new hard disk
- 13.7 Security and Privacy Tools
- 13.8 Mounting an image
- 13.9 Unmounting an image
- 13.10 Working with .vhd(x) files
- 13.11 Importing and exporting backup settings
- 13.12 Acronis Universal Restore
- 14 Troubleshooting
- 15 Glossary of Terms
- Acronis Active Protection
- Acronis Drive
- Acronis Notary
- Acronis Secure Zone
- Acronis Startup Recovery Manager
- Archive
- Archiving operation
- Backup
- Backup operation
- Backup settings
- Backup version
- Backup version chain
- Bootable media
- Data synchronization
- Differential backup
- Differential backup version
- Disk backup (Image)
- Full backup
- Full backup version
- Image
- Incremental backup
- Incremental backup version
- Mobile backup
- Nonstop backup
- Nonstop protection
- Notarization
- Notarized backup
- Notarized file
- Online backup
- Recovery
- Suspicious process
- Sync
- Validation
- Version of synced file
57 Copyright © Acronis International GmbH, 2003-2020
Differential (p. 33)
Select this method if you want to create backup chains containing only full and differential
backup versions.
You can configure the scheme by using one of the following options:
Create only differential versions after the initial full version - select this item to create only
one backup version chain. Automatic cleanup is not available for this option.
Create a full version after every [n] differential versions - select this item to create several
backup version chains. This is a more reliable but more space-consuming backup scheme.
Incremental (p. 33)
Select this method if you want to create backup chains containing only full and incremental
backup versions.
You can configure the scheme by using one of the following options:
Create only incremental versions after the initial full version - select this item to create only
one backup version chain. Automatic cleanup is not available for this option.
Create a full version after every [n] incremental versions - select this item to create several
backup version chains. This is a more reliable but more space-consuming backup scheme.
Automatic cleanup rules
To delete obsolete backup versions automatically, you can set one of the following cleanup rules:
Delete versions older than [defined period] (available for full method only) - Select this option to
limit the age of backup versions. All versions that are older than the specified period will be
automatically deleted.
Delete version chains older than [defined period] (available for incremental and differential
methods only) - Select this option to limit the age of backup version chains. The oldest version
chain will be deleted only when the most recent backup version of this chain is older than the
specified period.
Store no more than [n] recent versions (available for full method only) - Select this option to
limit the maximum number of backup versions. When the number of versions exceeds the
specified value, the oldest backup version will be automatically deleted.
Store no more than [n] recent version chains (available for incremental and differential methods
only) - Select this option to limit the maximum number of backup version chains. When the
number of version chains exceeds the specified value, the oldest backup version chain will be
automatically deleted.
Keep size of the backup no more than [defined size] (not available for local backups) - Select this
option to limit the maximum size of the backup. After creating a new backup version, the
program checks whether the total backup size exceeds the specified value. If it's true, the oldest
backup version will be deleted.
The first backup version option
Often the first version of any backup is one of the most valuable versions. This is true because it
stores the initial data state (for example, your system partition with recently installed Windows) or
some other stable data state (for example, data after a successful virus check).
Do not delete the first version of the backup - Select this check box to keep the initial data state. The
program will create two initial full backup versions. The first version will be excluded from the
automatic cleanup, and will be stored until you delete it manually.