What is AnvirHook631.dll?

The genuine AnvirHook631.dll file is a software component of AnVir Task Manager by AnVir Software.
AnvirHook631.dll is a is a DLL (Dynamic Link Library) file that belongs to AnVir Task Manager, a utility software the lets users monitor system processes and services, as well as Internet connections, CPU usage, disk usage and more. DLL files store data, code and resources needed by one or more programs in order to function correctly. This file manages the implementation of windows buttons, extensions of the Windows menu and Open/Save dialog boxes. This is not an essential Windows process and can be disabled if known to create problems. AnVir Task Manager is available as a free and a paid version. The free version lets users monitor often hidden components such as drivers, locked files, hidden processes, windows and DLL files, as well as CPU and GPU core temperatures, external USB drives, SSD drive health and more. The program can permanently block unwanted processed from being run. The program can also be used to analyze processes, startup programs and Windows services. AnVir Software is an American software company that develops system utility programs primarily for the Windows platform. The company was founded in 2002.

AnVirhook631 stands for AnVir Task system wide hook (version 631)

AnvirHook631.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if AnvirHook631.dll is a Windows system file or if it belongs to an application that you can trust.

Click to Run a Free Scan for AnvirHook631.dll related errors

AnvirHook631.dll file information

The process known as System wide hook. Implementation of windows buttons, extension of windows menu and Open/Save dialog belongs to software AnVir Task Manager or AnVir Task Manager Free by AnVir Software (

Description: AnvirHook631.dll is not essential for the Windows OS and causes relatively few problems. AnvirHook631.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 106,496 bytes (57% of all occurrences) or 114,400 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. It can change the behavior of other programs or manipulate other programs. The program is not visible. The service has no detailed description. The file is not a Windows system file. AnvirHook631.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 64% dangerous.

Uninstalling this variant: You can do the following:
  • search for help on the company’s website
  • search for an update on the vendor’s website
  • safely remove the program using the uninstall program of AnVir Task Manager or AnVir Task Manager Free (Control Panel ⇒ Uninstall a Program)

Recommended: Identify AnvirHook631.dll related errors

Important: Some malware camouflages itself as AnvirHook631.dll. Therefore, you should check the AnvirHook631.dll 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 AnvirHook631 issues

A clean and tidy computer is the key requirement for avoiding problems with AnvirHook631. 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.

To help you analyze the AnvirHook631.dll process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

AnvirHook631.dll [all]