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 Acronis Cloud cleanup
- 4.5.16 Online backup protection
- 4.5.17 Performance of backup operation
- 4.5.18 Selecting a data center for backup
- 4.5.19 Laptop power settings
- 4.5.20 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 Cleaning up backups, backup versions, and replicas
- 4.6.9 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 Recovery from Acronis Cloud
- 5.5 Recovering Office 365 data
- 5.6 Recovery options
- 6 Archiving data
- 7 Protecting family data
- 8 Antivirus and antimalware protection
- 9 Synchronizing data
- 10 Disk cloning and migration
- 11 Tools
- 11.1 Acronis Media Builder
- 11.2 Making sure that your bootable media can be used when needed
- 11.3 Acronis Startup Recovery Manager
- 11.4 Try&Decide
- 11.5 Acronis Secure Zone
- 11.6 Adding a new hard disk
- 11.7 Security and Privacy Tools
- 11.8 Mounting an image
- 11.9 Unmounting an image
- 11.10 Working with .vhd(x) files
- 11.11 Importing and exporting backup settings
- 11.12 Acronis Universal Restore
- 12 Troubleshooting
- 13 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
181 Copyright © Acronis International GmbH, 2003-2020
If required, you can dig deeper by expanding a component and selecting/unselecting its contents.
Having specified the components for clean-up, click the Clean-up button to continue.
Windows 7 and later operating systems do not store information on file and computer searches. Furthermore,
information on opened/saved files is stored in the registry differently, so the wizard shows this information in a
different way.
11.7.2.5 Clean-up progress
The operation status window reports about the state of the current operation.
The progress bar indicates the level of completion of the selected operation.
In some cases, the operation may take a long time to be completed. If this is the case, select the
Shutdown the computer after completion check box. When the operation finishes, Acronis True
Image 2021 will turn the computer off.
11.7.3 Hard Disk Wiping methods
What is the problem?
Information removed from a hard disk drive by non-secure means (for example, by simple Windows
delete) can easily be recovered. Utilizing specialized equipment, it is possible to recover even
repeatedly overwritten information.
Leakage mechanism
Data is stored on a hard disk as a binary sequence of 1 and 0 (ones and zeros), represented by
differently magnetized parts of a disk.
Generally speaking, a 1 written to a hard disk is read as 1 by its controller, and 0 is read as 0.
However, if you write 1 over 0, the result is conditionally 0.95 and vice versa – if 1 is written over 1
the result is 1.05. These differences are irrelevant for the controller. However, using special
equipment, one can easily read the «underlying» sequence of 1's and 0's.
Information wiping methods used by Acronis
The detailed theory of guaranteed information wiping is described in an article by Peter Gutmann.
Please see "Secure Deletion of Data from Magnetic and Solid-State Memory" at
https://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html.
No.
Algorithm (writing method)
Passes
Record
1.
United States Department of
Defense 5220.22-M
4
1
st
pass – randomly selected symbols to each byte of
each sector, 2 – complementary to written during the
1
st
pass; 3 – random symbols again; 4 – writing
verification.
2.
United States: NAVSO
P-5239-26 (RLL)
4
1
st
pass – 0x01 to all sectors, 2 – 0x27FFFFFF, 3 –
random symbol sequences, 4 – verification.
3.
United States: NAVSO
P-5239-26 (MFM)
4
1
st
pass – 0x01 to all sectors, 2 – 0x7FFFFFFF, 3 –
random symbol sequences, 4 – verification.
4.
German: VSITR
7
1
st
– 6
th
– alternate sequences of: 0x00 and 0xFF; 7
th
– 0xAA; i.e. 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0xAA.
5.
Russian: GOST P50739-95
1
Logical zeros (0x00 numbers) to each byte of each