What is a2hijackfree.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the a2hijackfree.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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A2hijackfree.exe file information

The process known as a-squared HiJackFree or HiJackFree belongs to software a-squared HiJackFree or Emsisoft HiJackFree by Emsi Software GmbH (

Description: A2hijackfree.exe is not essential for the Windows OS and causes relatively few problems. A2hijackfree.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,062,016 bytes (50% of all occurrences) or 3,754,368 bytes. 
A2hijackfree.exe is a Verisign signed file. The file is certified by a trustworthy company. The a2hijackfree.exe file is not a Windows system file. The program has no visible window. A2hijackfree.exe is able to connect to the Internet, record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 19% dangerous.

Uninstalling this variant: In case of any problems with a2hijackfree.exe, you can do the following:

Recommended: Identify a2hijackfree.exe related errors

Important: Some malware camouflages itself as a2hijackfree.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the a2hijackfree.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving a2hijackfree issues

A clean and tidy computer is the key requirement for avoiding problems with a2hijackfree. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the a2hijackfree.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

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