Acronis True Image 2015 Serial Key Download

Thanks for this great Article. I have tried to Clone with Acronis True Image 2015, AOMEI Partition Assistent and EASEUS with no success, every Tool has a BUG or something that let the cloning fail or the Partition Table is wrong after Cloning so you can’t boot from the SSD after cloning, which is very annoying. Click “Backup” on the left action bar in Acronis True Image, click the backup, then click Recovery at the top of the screen, follow the offered steps to download the files, Click the small arrow next to the backup name in backups list, select Delete – click Yes. We would like to show you a description here but the site won’t allow us. Acronis True Image Home 2010 Software, Techsmith Snagit 2019 Iso, Best Price Microsoft Outlook 2016, Autodesk Quantity Takeoff Torrent.

A boot disc is very useful because it can be used to perform troubleshooting tasks on an unbootable computer. Most of the time software that belongs in the category of data recovery, antivirus and hard drive backup/restore provides the option to create a boot disc which is sometimes known as rescue disc. Although these software can run from Windows, they are actually most efficient when run offline from a bootable disc.

An example scenario is you’ve accidentally deleted an important file. You can of course install a free data recovery software such as Recuva and attempt to recover the deleted file. However installing it on the computer will face a potential risk of the installed program overwriting the deleted file. To increase the chance of recovering the file, immediately shut down the computer, boot it up with a bootable WinPE disc and run Recuva from the Windows PE environment.

A boot disc is normally based on either Linux or Windows PE. Linux is commonly being used because the operating system and most third party tools are free, the generated boot disc is more compact in size and can run on slower computers. As for Windows PE, it has the best hardware support and most users would be familiar with it such as the hard drive naming convention (C:) in Windows compared to Linux (/dev/sda). However, Windows PE may have a higher system requirement because the latest Windows PE 5.1 already need at least 512MB just for the base and adding more drivers, packages, or apps will obviously require more memory.

Here we have a list of free boot discs based on Windows PE that come with a collection of useful tools which we think that every computer technician or even a normal user should have to hand.

20151. Paragon Rescue Kit 14 Free EditionAcronis True Image 2015 Serial Key Download

Paragon Software is well known for their hard drive management software. Other than shareware, one of the freeware applications they offer is the Paragon Rescue Kit 14. It comes with a bunch of useful tools such as backup/restore to virtual disk, postmortem backup/restore, boot corrector to fix MBR/boot.ini/BCD/EFI boot parameters, undelete partition to restore partition that has been accidentally deleted, and file transfer. Unfortunately the registry editor and password cleaner to reset the local Windows user account is only available in Linux but not in Windows PE.

Paragon Rescue Kit 14 does not require Windows Automated Installation Kit nor Windows Assessment and Deployment Kit to build the recovery media if you’re creating from a Windows 7 or newer operating system. The builder will simply use the WIM image of the current operating system. However do take note that you will need to install WAIK or ADK if you want the builder to create the ISO image file.

During the building process, you have the option to enable the advanced mode that allows to add storage and network device drivers, network configuration such as detecting the network interface automatically, and mounting a network share automatically after boot. You will also need to provide the product key and serial number which can be obtained for free at their official website.

Download Paragon Rescue Kit 14 Free Edition

2. Lazesoft Recovery Suite Home Edition

Lazesoft Recovery Suite Home Edition is free for non-commercial use only. It is able to create a Windows PE boot disc containing a few modules to help in recovering a crashed Windows by repairing boot errors, recover files after accidental deletion, cloning and creating disk image, recovering Windows serial number and resetting user account password.

Building a Windows PE with Lazesoft is as easy as clicking on the “Burn CD/USB Disk” button. You can choose to build a specific WinPE version ranging from Windows 7 to 8.1 for both 32-bit and 64-bit by clicking the Options button. The builder will automatically download the necessary components to build the WinPE if your computer does not have the files.

The Windows File Manager button found on the Lazesoft Recovery Suite Home Edition disc is not really a fully featured file manager like Windows Explorer where you have two tree view panes to easily manage files. You can however launch a third party file manager from the Windows Recovery button, go to the RepairTools tab and click on Lazesoft File Manager.

Download Lazesoft Recovery Suite Home Edition

3. AOMEI PE Builder

AOMEI Technology, the company that is well known for their PC backup software called Backupper, released a freeware program called PE Builder late last year to help users easily build a WinPE-based bootable media with just a few clicks. AOMEI PE Builder is able to build a Windows PE by using the Windows Recovery Environment that is found on newer version of the Windows operating system such as 7 and 8, so there is no need to download and install WAIK or ADK.

The Windows PE built by AOMEI PE Builder looks more like a normal Windows desktop because it comes with Windows desktop and Explorer which is not found in the Windows PE built by Paragon Rescue Kit or Lazesoft Recovery Suite. Other than that, AOMEI Backupper, AOMEI Partition Assistant and Windows Recovery Environment is included by default. You can also embed 3rd party portable tools such as 7-Zip, Everything, IrfanView, Notepad++, Q-Dir, Recuva, SumatraPDF, FileZilla, PENetwork, QTWeb, BOOTICE, NTPWEdit and OSFMount to the Windows PE by ticking the checkboxes. Custom drivers and files can also be added.

Do take note that the current version 1.4 and all older versions might not build a working Windows PE and this is caused by some compatibility issues with the recent Windows updates released by Microsoft. If you urgently need to build a working Windows PE using AOMEI PE Builder, you can do it from a Windows 7 computer with the 2 Windows updates KB3022345 and KB3045999 uninstalled. This workaround only works in Windows 7 but not in Windows 8.1. AOMEI is aware of this issue and is currently working on a newer version to fix this problem.

Download AOMEI PE Builder

4. Gandalf’s Windows 8.1 PE

If you’re looking for a pre-built Windows 8.1 PE, look no further and just use Gandalf’s Windows 8.1 PE because it is packed with useful programs. It has a desktop, explorer, start menu replacement with StartIsBack, compression tools, image viewer, hard drive tools, video player, OpenOffice, remote access tools (Ammyy Admin, Remote Desktop, TeamViewer), anti malware such as ClamWin and MalwareBytes, and many more!

Gandalf’s Windows 8.1 PE is 1.8GB in size and in an ISO image format. You can burn it to a DVD or install it to a USB flash drive using Rufus. Both X86 and X64 versions of the 8.1 PE are available to download. All the tools embedded to Gandalf’s Windows 8.1 PE are either free or trial versions which means it’s free from pirated programs.

Download Gandalf’s Windows 8.1 PE

5. WinBuilder 2015

WinBuilder 2015 is the new and completely rewritten tool of WinBuilder 082 which has not been updated since 2011. The old WinBuilder 082 comes in a nice graphical user interface with buttons and graphs while the latest WinBuilder 2015 runs in a simple window that accepts commands, similar to a command prompt. This new version of WinBuilder runs on Java which means it can also run on operating system other than Windows such as Linux and Mac OSX.

The old WinBuilder 082 is supposedly easy enough to use involving only two steps but may be difficult to troubleshoot the problem if there are errors during the Windows PE building process. The new WinBuilder is even easier by typing a single command “AUTO” into the window, and the whole process of building a Windows PE bootable disc is fully automated including the downloading of the Windows ISO image file.

Currently there are 18 portable software tools that can be added to the Windows PE automatically through WinBuilder 2015 by typing the command “install appname” in the program. The plugins available to install can be listed by typing “install list” in the program window. For example, to install Recuva, simply type “install recuva” in the window. Do note that there is no need to type the complete plugin name because the program accepts partial filenames.

Acronis True Image 2015 Serial Key Download

Download WinBuilder 2015

Additional Notes: You can build a WinPE 5.1 which is based on Windows 8.1 using the old WinBuilder 082 through Win8.1SE. You will need to download the Windows 8.1 enterprise evaluation ISO, extract it to your hard drive or mount the ISO to a drive letter, point the source directory to the extracted/mounted Windows 8.1 files, and click the Play button. Optionally, you can also change the configuration settings by enabling/disabling the scripts found at left hand navigation tree.


When a backup ends with an error status (backup is not created), Acronis True Image displays a short error message in the product interface, and writes the details in a text log file (“full log”).

To see the short error message do either of the following:

  • Click on the red cross or the pause icon in the center of backup task screen.
  • Click on the Activities tab of the failing backup task

If the short error message was not enough to find a solution and resolve the issue, search for key words «error» and «failed» in the full log which can be accessed by any of the listed methods:

  • Locate the newest file at C:ProgramDataAcronisTrueImageHomeLogsti_demon and open it in Notepad
  • If you have configured email notifications, the full log will be attached or included in the body of the email
  • Download and launch Log Viewer tool (does not require installation), from When launched, it automatically loads and displays a formatted log of the latest backup attempt, where you can find the error message and look it up here.

Learn more about the full log format at

Before you begin

If you do not want to troubleshoot, but are OK with repeating the procedure of configuring the backup task and running a full backup again, you can try a clean reinstall and start over with a new backup task. Create a new empty folder in the backup destination for storing the backups (local backup) or create a new backup task (backup to Cloud). Delete the old backup to make room for the new backup. While that does not help always, it still can save you time and efforts on troubleshooting a number of backup failures, especially undocumented.

Acronis True Image 2015 Serial Key Download Torrent

Common backup errors, causes and solutions

Acronis True Image 2015 Serial Key Download Windows 7

Acronis True Image 2015 Crack + Serial Key Free Download

Backup error message
For causes and solutions please see the entire cells to the right.

Possible causes

Solutions: apply solutions in the order they are listed. Check if the issue is resolved after each.

  • The device, where backups are physically stored, is powered off, not connected, hung up or does not provide access to the directory with backups due to any other reason
  • Multiple drives are used either for storing backups, or as backup source, within a single backup task. Acronis True Image does not support rotating drives
  • The folder where backups are stored changed its name, was moved, deleted or user permissions for accessing it changed
  • A parent directory in the folder hierarchy changed its name, was moved, deleted or user permissions for accessing it changed
  • Backups to local network/NAS:
    • Location for storing backups was defined using the IP-address (e.g. “”, it changed after updating the software/firmware of the NAS
    • Location for storing backups was defined using the name of the NAS/network device (e.g. “MyCloudbackups”, and an issue on the router, NAS or the PC/Mac caused the network name to work anymore (e.g. you can access files and folders on your NAS by IP, but not by name)
  • .TIB files were renamed, moved or deleted outside of Acronis True Image interface
  • Outdated names, paths or access details in the cache of Acronis True Image
  • .TIB files were renamed, copied, moved or deleted outside of Acronis True Image program’s user interface: have you cleared up disk space by deleting .TIBs in Windows Explorer? Now the old paths to .TIBs, remembered by the program previously, point nowhere and the software is unable to access the files required to continue a backup set.
  • If backup source or destination drives are swapping/rotating external USB disks: create one backup task for each source and each external drive or switch to Acronis Backup 12.5 (PC, Mac)
  • Bitlocker-encrypted disks: unlock the disk where backups are stored, see for details
  • Edit backup task and reselect backup source and destination
  • Follow
  • NAS: reboot the NAS
  • Repair program settings as per
  • Clean reinstall Acronis True Image:

Ensure that the folder is accessible

The specified file does not exist

Cannot access the path

Failed to open the backup location

Cannot find version

This is not the last volume of the backup archive

The drive is not ready

  • The disk device is not responding properly to read/write requests, which could be a temporary glitch or a permanent failure of the device - try copying a file from the selected backup source to the backup destination using Windows Explorer to check that factor
  • Corrupted file system or disk partition table
  • Acronis drivers for accessing the disks are not functioning properly
  • Reconnect external disk:
    • Safe eject the drive
    • If it has an external power source – disconnect it, wait 10 seconds, and re-connect it
    • Re-connect the disk to a different port on the computer
    • NAS devices: reboot the NAS
  • Reboot the computer.
  • If the check of copying file through Windows Explorer failed (see the “Possible causes” part to the left)
  • Repair software installation: , then edit backup task and re-select backup source and destination
  • Change the caching policy for the disk to “Optimize for quick removal” as per

The device is not ready

The trial version of Acronis True Image has expired

  • Trial mode was already used once. The trial period is restricted to 30 days and to be only one-time per major version of Acronis True Image in the given operating system. Learn more on trial mode at
  • Subscription license expired and was not renewed, software moved into trial mode and 30 days trial mode also ended
  • New or extended license required interaction under for proper license activation and you may have missed the corresponding notification. As a result, the new/extended license was not activated and the software moved into trial mode.
  • Renewed subscription license was activated to a different email address, leaving the original account without a license. Software entered trial mode, which then ended.
  • The regular license check failed and the software transitioned into trial mode, which then ended
  • Renewed subscription license or a new perpetual license could not be activated due to any other reason, the software entered trial mode, which then ended
  • System date and time changed as a result of system recovery, clone or any other way
  • Issue with the license cache on the current computer
  • Check the major version of installed Acronis software (e.g. 2014, 2018), remember if you have trialed it before on the current operating system
  • If you have a non-trial license: activate it as per
  • Subscription users: make that the new license is registered to the same Acronis account. Move the license between different email addresses as per
  • Make sure the system date and time are not in the future
  • Perform a clean reinstallation

Disk is full

  • Running out of space on the disk where backups are stored:
    • Automatic backup cleanup does not apply to backup versions that are not visible in Acronis True Image interface. As a quick check, open “Recovery” dialog and expand the list of available dates – recovery points, compare to .TIB files
    • Automatic cleanup rules are misconfigured
    • Earlier backup versions were not deleted due to any reason
    • The disk where backups are stored, became filled with not Acronis files
  • NAS: the limit (quota) for the NAS user account, indicated during backup setup, has been reached. This quota/limitation is configured in NAS settings outside of Acronis software. Acronis has no influence on it. The NAS user account is completely unrelated to Acronis account and is set exclusively through the NAS management panel
  • External drive, where backups are saved, has quotas enabled for different Windows users. To check if that is the case, right-click the disk in Windows Explorer, click on the Quota tab and click “Show Quota settings”
  • Not enough free disk space on the source disk for Microsoft VSS snapshot
  • Too high disk activity on the source disk causes Microsoft VSS snapshot to cancel and delete
  • Check that other software is not filling the disk space where you save the backups. Move or delete the files from other software to a different disk/location
  • If there are .TIBs that are not registered in Acronis True Image (missing in the list of recovery date/time), turn off self-defence feature as explained at and delete these orphaned .TIBs from the destination disk. If you need those backups – add them to the list as per and find what other backups/backup versions to delete to free up disk space
  • Correct the rules for automatic backup deletion and free up disk space:
    • Enter backup settings – tab “Backup scheme” and adjust cleanup settings: reduce the number of backup chains to keep (a backup chain is a full backup and all the incrementals/differentials before the next full backup). Earlier backups are deleted by chains. Deletion of any backup version is postponed until all the chain is subject to deletion.
    • Free up disk space by deleting backups: click the arrow key next to backup name in Acronis True Image to open the menu, choose “Delete” – “Delete entirely” or “Cleanup versions”
  • Close all other programs when running the backup, especially antivirus, security and software that could be intensively reading or writing data to disk: data synchronization, copying, backup, cataloging, search and indexing
  • Run the free Acronis tool for troubleshooting Microsoft VSS issues: Acronis VSS Doctor.

Acronis Cloud is full

  • Backup versions occupy too much disk space in the Cloud
  • Reduce the number of backup versions to keep in the backup settings, delete earlier versions
    • Open backup settings – “Options” - tab “Advanced” – “Acronis Cloud cleanup”, reduce the number of versions to keep, and the amount of time the versions are stored in the Cloud
    • Click “Account” on the left action bar – click “Browse my data”, mouse over the backup and click the gear icon that will appear, to access the backup cleanup and delete menu options
  • Download some of your backups from Cloud locally, then delete those backups from Cloud:
    • Click “Backup” on the left action bar in Acronis True Image, click the backup, then click Recovery at the top of the screen, follow the offered steps to download the files,
    • Click the small arrow next to the backup name in backups list, select Delete – click Yes.
  • If you need all of the backups, including all accumulated backup versions, and room for new backups – buy more storage space:
    • Click “Account” on the left action bar
    • Click “Upgrade” button
    • Select the appropriate new storage quota and proceed with the purchase wizard. Learn more at

Check your Internet connection

  • PC/Mac, where Acronis True Image is installed, does not have internet connection
  • Connection to Acronis Cloud is blocked by firewall, antivirus or other security software on PC/Mac
  • Connection to Acronis Cloud is blocked in the system file “hosts”
  • Access through the required network ports is not allowed in firewall, antivirus or other security software on PC/Mac, on the router or at Internet Service Provider (ISP) level
  • Follow to troubleshoot and resolve the issue

Nothing to back up

  • Disk with the data, selected for backup, is not connected, turned off or is not accessible for any other reason
  • Unique identification codes of disk, partition, selected for backup (disk's and partition’s properties that exist outside of Acronis), changed as a result of disk format, firmware update, partition table modification or due to any other factors. As a result, old identification codes, stored in the backup task configuration became outdated
  • If the backup source is a network drive/NAS – the share may have been disabled, changed its name, access path or was deleted
  • Start creating a new backup task - if the product does not «see» any disks at all, it means Acronis drivers did not load correctly. This might happen in scenarios of multiple Acronis products installation, re-installation and uninstallation, because the core Acronis drivers are shared among products.
  • Edit backup task, click on the backup source on the left side of the window and re-select what to back up.
  • Delete the backup task that fails and create a new one
  • Uninstall Acronis product, reboot the computer and install it again
  • If multiple Acronis products are installed: uninstall all of them, run the Cleanup tool, reboot the computer and install Acronis True Image anew.

No current disk

No current partition

Please close the application that may currently use the file

  • A third party application from the same or different PC/Mac may be working with the file in exclusive access mode, restricting access to the file from Acronis and all other software
  • NAS: application running on the NAS itself may be working with the file in exclusive access mode, restricting access to the file from Acronis and all other software
  • Close all third-party software that may be hold open the file/folder indicated in the error message. If a NAS is involved and there are other machines that have access to the NAS, close such programs on those computers too
  • Close all other software before starting the backup, including data synchronization, copying, backup, cataloging, search and indexing
  • Disable antivirus and other security software (anti-malware etc.)
  • Reboot the PC/Mac and the NAS
  • If a NAS is involved in the backup, disconnect all other computers from the NAS, leaving the machine with Acronis True Image the only PC/Mac connected to the NAS, in order to understand what is locking the file/folder and prevents Acronis from accessing it

… may be blocked by another application

  • NAS is turned off, disconnected or stopped serving file shares
  • Issue with the DNS service on the router
  • DNS name or IP-address of the NAS has changed
  • Router stopped working properly, causing issues with local network
  • Backup source, destination or both computers are configured to turn off their network adapters to save power
  • Verify that the NAS is turned on and is accessible through Windows Explorer: try copying a file from backup source to the backup destination using Windows Explorer.
  • Follow instructions from the “Resolution” section of
  • Reboot the router, NAS and the PC/Mac
  • Install all available Windows Updates
  • Enter the network adapter settings on both source and destination computers and uncheck the option to save power by turning off network adapter
  • Update the software/firmware on the NAS and router

Access denied

  • The SYSTEM Windows account, the current Windows user account or the specified NAS account lack the necessary permissions for accessing backup source or destination locations.
  • Backup source or destination contains NTFS reparse points. Backup is performed in file/folder mode or is saved to Acronis Cloud.
  • A particular file or folder in the backup source is corrupted and cannot be accessed and opened by any software, not only Acronis
  • Issue with the file system
  • Grant the SYSTEM Windows account, the current Windows user account (local backups) or NAS account (if the error message refers to a file/folder on a NAS) full control rights over the file/folder indicated in the error message
  • Acronis True Image 2018 and earlier versions: see
  • Reboot PC/Mac and NAS (if used) to lift any locks that other applications may have put
  • Right-click the disk with backup source, select Properties – Tools – Check, enable the option to automatically correct the found errors (if this option is present) and run the check/scan.
  • If the error message references a NAS, run the check using NAS control panel.
  • Find which folder or folder exactly cannot be accessed. If the path to it is not displayed in the product’s GUI, look into the full log using Log Viewer and find what file/folder cannot be accessed. Try opening or copying the file/folder in question. If the operation fails – attempt deleting it. If the deletion fails, the file/folder must be corrupted: try deleting it using methods described here.

Access to the file is denied

Failed to enumerate directory


The media is write protected

The file is read-only

Error occurred while reading the file

Cannot access backup file. Please ensure that you entered the correct credentials for the network share

Data error (cyclic redundancy check)

  • Bad blocks or other errors on the source disk
  • Any other issue with the hardware
  • Damaged file system
  • Right-click the disk with backup source, select Properties – Tools – Check, enable the option to automatically correct the found errors (if this option is present) and run the check/scan.
  • Check the disks’ health using additional diagnostic tools. Faulty disks need to be replaced with new to avoid data loss:
    • Free CrystalDiskInfo instantly reads the disk health status as reported by the disk itself and displays it as Good, Caution or Bad. It is the quickest way to identify a disk hardware failure.
    • Dedicated diagnostic utilities from the disk manufacturers take the longest time to complete the checks, but provide the most accurate methods of checking whether the disk is good or needs replacement:
      • Western Digital drives: Data Lifeguard Diagnostic for Windows
      • Seagate disks: SeaTools for Windows
      • HGST disks: HGST Windows Drive Fitness Test (WinDFT)
      • Intel SSDs: Intel Solid State Drive Toolbox
      • Samsung drives: Samsung Magician
      • ADATA drives: ADATA SSD ToolBox
      • Kingston SSDs: Kingston SSD Toolbox, Kingston SSD Manager
      • Transcend SSDs: Transcend SSD Scope
      • Silicon Power disks: SP ToolBox
      • Toshiba disks: Toshiba PC Diagnostic Tool Utility

CRC error

I/O error

Failed to read the snapshot

The quotas are violated

  • NAS: the limit (quota) for the NAS user account, indicated during backup setup, has been reached. This quota/limitation is configured in NAS settings outside of Acronis software. Acronis has no influence on it. The NAS user account is completely unrelated to Acronis account and is set exclusively through the NAS management panel
  • External drive, where backups are saved, has quotas enabled for different Windows users
  • Enter NAS management panel and increase quota for the NAS account, that was used in backup configuration
  • Right-click the disk, where backups are saved, in Windows Explorer, and if there is Quota tab, click on it and click “Show Quota settings”. Increase the quota for the SYSTEM account and the current Windows user account.

Failed to connect to …

  • Connection to Acronis servers is interrupted or completely blocked by a firewall, hosts file settings or a third-party software
  • The software was unable to update the certificate file that is used as a key in establishing secure connection to Acronis servers due to any reason
  • Issue with a particular backup that was damaged and needs to be recreated
  • Follow instructions at to refresh the cache folder “OnlineBackup”, and fix connection issues to Acronis servers
  • Create a new backup task for the same backup source and run it. If it succeeds, or if you need space for new backup, delete the original backup

SSL connection has failed

The server rejected the renewed certificate

The remote server returned error

Failed to lock the file

Read error or data content is corrupted

  • Local backups: possible issue with the connection to the backup storage device or an issue with the storage device itself
  • Local backups: backup archive file was created incorrectly needs to be recreated
  • Local and Cloud backups: the main body part of the backup could have been written incorrectly from the beginning, or there was an unsuccessful attempt to update the backup afterwards. The backup is damaged at present and is not readable. Such backup is also called 'corrupted'
  • Follow instructions from

Error while checking the metadata integrity of points in time (PITs) in the archive

Failed to open data stream

Invalid internal API usage. Either the stream is corrupted or the archive options are incorrect.

Read error or metadata content is corrupted

  • Backup location is unavailable
  • Backup’s metadata, used in Nonstop backup and in backup to Cloud, is not readable or is damaged
  • Follow instructions at
  • Delete the backup and re-define backup task:
    • Backup to Cloud: use a different name for the backup
    • Nonstop backup: use a new empty folder as destination for backup


You have entered an incorrect email or password

  • Wrong email or password for Acronis account
  • Have you changed your Acronis account password?
  • Acronis account email or password were changed, but not updated in the program
  • Verify that you are using correct Acronis account’s email and password
  • Click on the Account tab in the program
  • Click on your account email, select Sign out. Then sign in back using the current credentials. If login fails, verify them by signing with them into
  • Follow

Internal error in library

  • Incomplete installation
  • Software files’ were altered by other programs
  • Antivirus or other security software blocks Acronis
  • Issue with one of Windows OS components, used by Acronis True Image: runtime libraries, VSS or others
  • An application crash event occurred: a part of Acronis software unexpectedly terminated and unloaded from memory for some reason
  • An issue with handling a particular backup source or target:
    • the storage device itself
    • its partition table
    • file system
    • folders and files names
  • Turn off the antivirus and other security software
  • Reboot the computer
  • Update the software to the latest version
  • Run repair installation
  • Install all available updates for Windows operating system
  • Run Acronis CleanUp tool, reboot the computer, download and install the latest version of Acronis True Image from
  • Check if the issue is connected to the selected backup source or destination: create a new empty folder as backup destination, pick a small file or folder as backup source, run the backup. If it succeeds, the original backup source or destination may be partially or fully inaccessible or damaged/corrupted and need to be repaired:
    • Right-click the disk with backup source, select Properties – Tools – Check, enable the option to automatically correct the found errors (if this option is present) and run the check/scan.
    • If the error message references a NAS, run the check using NAS control panel.

The activity has failed due to a restart of the service

  • Owners of one-time purchase licenses: perpetual license was not activated
  • Subscription license owners: subscription has expired and requires renewal
  • Subscription license owners: you may be asked whether you want to add more Cloud storage space or extend the duration of the subscription with the current Cloud storage quota
  • If you used different email addresses in Acronis program (check Account tab) and when purchasing new or renewing existing license (check emails from Acronis and online stores), please move the new license to the account that is displayed under Account tab. For that, visit your Acronis account and access the move license feature from the three dots menu under the license. Learn more at
  • One-time purchase (perpetual) licenses: click on the Account tab in the program, click “Enter serial number” or “Change serial number”, input your new key.
  • Subscription license owners: check your email, visit your Acronis account to see if any action is required from you.

Unable to create volume snapshot

  • Issue with Microsoft Windows’ Volume Shadow Copy (VSS) service. It is used by backup software to keep the data in a consistent state in the backup
  • Issue with VSS infrastructure, including VSS readers, writers, providers of third-party applications, installed on the computer
  • No free space on the source disk
  • Too high disk activity on the source disk
  • Permissions issue with system partitions, files, folders or in the system registry
  • Reboot the computer
  • Run Acronis VSS diagnostic tool, act depending on the found issues with VSS:
  • Install all available updates for Windows
  • Close all other applications before starting the backup
  • For cases when Windows Application event log also contains an error from source 'CAPI2' and Event ID 513: follow instructions here.
  • For disk/partition backups of a non-system drive and for file/folder backups: enter backup options, click on the Advanced tab – Performance. Set “Snapshot for backup” to “Acronis snapshot”, click OK to save changes

Please check the NAS network preferences, and then reopen the app

  • NAS blocks connection requests from Acronis True Image
  • Open ports TCP 58081 and 58082 in NAS Firewall settings. See for details

FTP connection has failed

  • Incorrect credentials for accessing the FTP server
  • Incorrect FTP server address or path on the FTP server used
  • The folder on the FTP server was deleted, renamed or moved
  • Neither of the following network protocols are supported by Acronis True Image:
    • FTPS (FTP with SSL/TLS)
    • SFTP (FTP over SSH)
  • Verify that FTP server is accessible by browsing it in Windows Explorer, a web browser or a FTP client software
  • Edit backup settings, verify that the specified credentials for FTP connection are correct
  • Edit backup settings, verify that the specified FTP address and path to the folder on the FTP server are correct
  • Disable antivirus and other security software before starting the backup
  • Turn off FTPS and SFTP in the FTP server settings

Error occurred while backing up

  • A generic error message is shown. Error’s details are not displayed in the user interface, but are recorded in the detailed log file.
  • Use Log Viewer to see the details of the failure:
  • Open the latest modified file in the folder C:ProgramDataAcronisTrueImageHomeLogsti_demon in Notepad to find the detailed error message, then look it up in the present table.

Backup failed

Operation failed

Read error

Write error

Error occurred while writing the file