What is mcbrhlpr.dll?

Mcbrhlpr.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 McAfee Privacy Browser Helper.

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Mcbrhlpr.dll file information

The process known as McAfee Privacy Service Browser Helper DLL or Privacy Service Browser Helper DLL belongs to software McAfee Privacy Service or Privacy Service by McAfee ( or Networks Associates Technology (

Description: Mcbrhlpr.dll is not essential for the Windows OS and causes relatively few problems. The file mcbrhlpr.dll is located in a subfolder of "C:\Program Files" (common is C:\Program Files\\mps\). Known file sizes on Windows 10/8/7/XP are 147,456 bytes (64% of all occurrences), 102,400 bytes or 94,208 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 227B8AA8-DAF2-4892-BD1D-73F568BCB24E. The program has no visible window. The file is able to monitor web browsers. The service has no detailed description. It is not a Windows core file. Therefore the technical security rating is 66% dangerous, however you should also read the user reviews.

Recommended: Identify mcbrhlpr.dll related errors

External information from Tony Klein:

Important: Some malware camouflages itself as mcbrhlpr.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the mcbrhlpr.dll process on your PC to see if it is a threat. If McAfee Privacy Browser Helper 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 privacy service is part of McAfee internet suite
  davi privacy service is part of McAfee internet suite

Summary: Average user rating of mcbrhlpr.dll: based on 6 votes with 2 user comments. 6 users think mcbrhlpr.dll is essential for Windows or an installed application.

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Best practices for resolving mcbrhlpr issues

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

mcbrhlpr.dll [all]