Anti virus

Acronis Backup & Recovery 10 tasks hang on 100% because of conflict with BitDefender

Go to the ESET NOD32 interactive window to unfreeze the operation

To solve the issue, exclude managed vault and deduplication database from the antivirus scan

A backup attempt will fail if you have AhnLab antivirus enabled. Acronis software is incompatible with AhnLab software


Customers have reported the following symptoms while running Symantec AntiVirus Corporate Edition (Version 7.x and 8.x) with any version of Acronis Files Connect (formerly ExtremeZ-IP):


We have received reports from some users of Acronis Files Connect (formerly ExtremeZ-IP) running Symantec Corporate Antivirus that their server performance may degrade over time and hang the server. If you are running Symantec Corporate Antivirus - please consider updating the SYMEVNT.SYS file to the latest version.


Steps to Reproduce:

Install Symantec Corporate Antivirus and Acronis Files Connect on the same server.



A bug in the Symantec Corporate Antivirus Symevent files.



1. BitDefender is installed on the same machine with Acronis Snap Deploy

2. You try to add machines to the list by specifying a file with MAC addresses

3. Operation fails with error:

Failed to execute asynchronous action


 BitDefender conflicts with Acronis Snap Deploy 5.


Add the following folders to exclusions by BitDefender:

C:\Program Files\Acronis\ 

Setting up network for Acronis products.

Acronis software needs exclusive access to your machine's disk to operate.

This means that antivirus software may conflict with Acronis products.

To eliminate the potential compatibility issues, you need to:


Blue Screen of Death (BSOD), or system restart (depending on the configuration of the 'Startup and recovery' settings) can be observed on computers with DeviceLock Service and Kaspersky Endpoint Security 11 (antivirus) installed.


This is a know compatibility issue of Kaspersky Endpoint Security 11 (antivirus) with a number of other software products, including DeviceLock. For resolving this compatibility issue Kaspersky Lab released a private patch pf5038.

Acronis True Image 2021 combines reliable backups with advanced security features - integrated anti-ransomware, cryptomining protection and antivirus - to protect you against today's threats.

This article contains frequently asked questions about new Advanced Antimalware Protection features of Acronis True Image 2021.

Exclude Acronis program folders, executable files and program data from the antivirus check.


You disabled Antivirus and antimalware protection via Pause protection -> Turn off protection.

Despite disabled protection, scheduled antivirus scan continues to run.

In Cyber Protection agent logs C:\ProgramData\Acronis\Agent\var\log\atp-agent you find the following message:

[error] [ScheduleServiceProxy] : UnscheduleTask()[...] No tasks for cmd


Issue in the product.


You have an antivirus or a different security solution in place and you want to install Acronis True Image 2021.


After Acronis True Image 2021 is installed on a machine with a different security solution in place, the machine displays significant performance degradation, such as programs not running or running slowly, unexpected reboots, slow booting, etc


Two or more antivirus solutions are active on the same machine.

You can use the links in this article to test if Acronis Antimalware protection is configured correctly.

Cyber Protection represents an all-in-one cyber protection solution that integrates backup and recovery, disaster recovery, malware prevention, security controls, remote assistance, monitoring, and reporting.

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This article explains how to temporarily turn off Windows Defender Antivirus in case it conflicts with Acronis software on Windows 10, e.g. prevents successful software installation or update/upgrade.

In some situations, a security program like virus scanner or other security suites blocks the functionality of the product. You can solve such issues by adding program folders or executable to exclusion or to whitelist.

While attempting to install LogMeIn Antivirus to a machine that has Acronis Cyber Protect Cloud (build 22210 or newer) already installed the installation fails with:

Installation failed! LogMeIn Antivirus cannot be successfully installed.


Bitdefender installation failed Bitdefender could not be installed because it is already existing security software is installed: Acronis Cyber Protect


As of Windows 11, version 21H2, Microsoft introduced the Azure Code Signing requirement for all Antivirus and Anti-Malware Protection vendors.

Azure Code Signing ensures that your Windows workload is secure and compliant by establishing the identity of the application publisher. It also verifies application integrity, ensuring it has not been modified since publication.


Installation of third-party endpoint security software (e.g. BitDefender Endpoint Security) fails or hangs on the machine where Acronis Cyber Protect Home Office/Acronis True Image 2021 is installed, even when Antivirus and Antimalware protection is disabled.


Acronis Cyber Protect Home Office/Acronis True Image 2021 and third-party endpoint security software use the same network filtering driver (bddci.sys) that cannot be shared.


Before installing third-party endpoint security software follow the steps below:


This article describes various alerts that appear in cases when Acronis Antivirus & Real-time protection conflicts with a third-party antivirus or Windows Defender.

Alert 1 – Windows defender is blocked by a third-party antivirus software: Windows defender is blocked because Acronis cyber protect is installed on machine

In this case, both Windows defender and Acronis real-time protection are enabled. It is not possible to run two antiviruses in one machine as they will conflict with each other.