How to remove the Blocker virus

Most antivirus programs identify Blocker.dll as malware.

The Blocker.dll file is a software component of Acronis Privacy Expert Suite by Acronis.
Blocker.dll is a DLL (Dynamic Link Library) file that belongs to Acronis Privacy Expert Suite, a security software that protects computers against malware, spyware, rootkits, adware, and other malicious programs. DLL files store data, code and resources needed by one or more programs in order to function correctly. This is not a critical Windows component and should be removed if known to cause problems. Acronis Privacy Expert Suite is a tool for spyware and malware detection and eradication. The software also features a file shredder which uses eight different methods to wipe deleted data to ensure it is completely removed from the system. The data-removal process may be used for internet history, system data, application activity, individual files, as well as entire hard drives. Acronis International GmbH is a Swiss company that develops data protection solutions. The company primarily caters to small and medium-sized organizations and develops software for backup, disaster recovery, data access, and secure file sharing. Acronis was founded in 2003 and is currently headquartered in Schaffhausen, Switzerland.

Blocker stands for Acronis Popup Blocker

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the Blocker.dll malware

Blocker.dll file information

The process known as Acronis Popup Blocker belongs to software Acronis Privacy Expert Suite by Acronis (

Description: Blocker.dll is not essential for Windows and will often cause problems. Blocker.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 766,138 bytes (20% of all occurrences), 787,092 bytes, 428,740 bytes, 437,321 bytes or 437,107 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include E24AD748-155E-4254-B674-4EDF86E7E1DF. The program has no visible window. It is able to change the behavior of, or monitor Internet Explorer. The file is not a Windows core file. Blocker.dll is able to monitor applications and record keyboard and mouse inputs. Therefore the technical security rating is 54% dangerous, however you should also read the user reviews.

Uninstalling this variant: You have the option to do the following:
  1) uninstall the associated program (Start > Control Panel > Uninstall a Program > Acronis Privacy Expert Suite)
  2) go to the support area of the Acronis website
  3) check if there is a newer version available.

Recommended: Identify Blocker.dll related errors

External information from Tony Klein:

Important: You should check the Blocker.dll process on your PC to see if it is a threat. If Acronis Popup Blocker has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

This program put homepage in block list and user could not start Internet explorer.
  philip leighton   (further information)
popup blocker and it works

Summary: Average user rating of Blocker.dll: based on 2 votes with 2 user comments. One user thinks Blocker.dll is essential for Windows or an installed application. One user thinks Blocker.dll is dangerous and recommends removing it.

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Best practices for resolving Blocker issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active Blocker process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the Blocker.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

Blocker.dll [all]