What is OpenDNSUpdater.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 OpenDNSUpdater.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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OpenDNSUpdater.exe file information

Windows Task Manager with OpenDNSUpdater
OpenDNSUpdater.exe process in Windows Task Manager

The process known as OpenDNS Updater belongs to software OpenDNS Updater by OpenDNS (

Description: OpenDNSUpdater.exe is not essential for the Windows OS and causes relatively few problems. The file OpenDNSUpdater.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 839,680 bytes (96% of all occurrences) or 839,168 bytes. 
OpenDNSUpdater.exe is not a Windows core file. The program is not visible. The software starts when Windows starts (see Registry key: Run). It can change the behavior of other programs or manipulate other programs. OpenDNSUpdater.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 58% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you are having problems with OpenDNSUpdater.exe, you can uninstall OpenDNS Updater software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify OpenDNSUpdater.exe related errors

Important: Some malware camouflages itself as OpenDNSUpdater.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the OpenDNSUpdater.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.


User Comments

This is installed as part of keeping track of your IP so you can use their DNS filtering service.
  Chuck Bridges   (further information)
OpenDNS provides a free alternative DNS, includes content filters & traffic log. Updates your internet IP address on your account. (Only necessary for dynamic IP internet connections using OpenDNS)

Summary: Average user rating of OpenDNSUpdater.exe: based on 2 votes with 2 user comments. One user thinks OpenDNSUpdater.exe is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving OpenDNSUpdater issues

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

OpenDNSUpdater.exe [all]