What is gaoptout.dll?

The genuine gaoptout.dll file is a software component of Google Analytics Opt-out Browser Add-on by Google.
Gaoptout.dll is a DLL (Dynamic Link Library) file that belongs to the Google Analytics Opt-out Browser Add-on, a browser plugin that lets users permanently opt out having their data collected by Google Analytics. DLL files store data, code and resources needed by one or more programs in order to function correctly. This file is a Browser Helper Object (BHO) that adds program functionality to Microsoft's Internet Explorer and other Internet browsers. This is not a critical Windows component and should be removed if known to cause problems. Google was founded in 1998 by Larry Page and Sergey Brin, Ph.D. students at Stanford. Google has since grown into one of the biggest companies in the world, offering hundreds of services, including webmail (Gmail), cloud storage (Google Drive), office software (Google Docs) and social networking services (Google+). Alexa, which provides web traffic data, lists Google as the world's most visited website. Its popularity has led to huge media coverage, including a major critique of the company over copyright, censorship, and privacy issues. Google is headquartered in Googleplex, Mountain View, California, USA.

GAOptout stands for Google Analytics Opt-out Browser Add-on

Gaoptout.dll is a browser extension for Internet Explorer. This add-on enables several additional functions for Internet Explorer. You can disable it through the Extras menu (key combination Alt + X) under Manage Add-ons. The following paragraph provides more information about Google Analytics Opt-out Browser Add-on.

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

Gaoptout.dll file information

The process known as Google Analytics Opt-out Browser Add-on belongs to software Google Analytics Opt-out Browser Add-on or Deaktivierungs-Add-on für Browser von Google or Module complémentaire de navigateur pour la by Google (

Description: Gaoptout.dll is not essential for the Windows OS and causes relatively few problems. Gaoptout.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 312,648 bytes (54% of all occurrences), 245,816 bytes or 262,608 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 75EF13CE-B59E-41ba-8A5A-A944031BD8B4. The process has no file description. The program has no visible window. The gaoptout.dll file is a Verisign signed file. Gaoptout.dll is able to change the behavior of, or monitor Internet Explorer. The file is digitally signed. The file is not a Windows system file. The process can be removed using the Control Panel's Add\Remove programs applet. Therefore the technical security rating is 32% dangerous.

Uninstalling this variant: In the event of any problems with gaoptout.dll, you could also do the following:
  1) uninstall the software Google Analytics Opt-out Browser Add-on or Deaktivierungs-Add-on für Browser von Google using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)
  2) look for help on the website.

Recommended: Identify gaoptout.dll related errors

Important: Some malware camouflages itself as gaoptout.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the gaoptout.dll process on your PC to see if it is a threat. If Google Analytics Opt-out Browser Add-on 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.


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Best practices for resolving gaoptout issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active gaoptout process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the gaoptout.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 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.

Other processes

gaoptout.dll [all]