What is SiteAdv.dll?

SiteAdv.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 SiteAdvisor.

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SiteAdv.dll file information

The process known as SiteAdvisor belongs to software McAfee SiteAdvisor or SiteAdvisor by McAfee (

Description: SiteAdv.dll is not essential for the Windows OS and causes relatively few problems. The SiteAdv.dll file is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of the user's "Documents" folder. Known file sizes on Windows 10/8/7/XP are 927,008 bytes (69% of all occurrences), 910,624 bytes and 8 more variants. 
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 089FD14D-132B-48FC-8861-0048AE113215. The SiteAdv.dll file is a Verisign signed file. The program has no visible window. SiteAdv.dll is able to monitor web browsers. The SiteAdv.dll file is digitally signed. The service has no detailed description. The file is not a Windows system file. SiteAdv.dll is able to monitor applications. Therefore the technical security rating is 47% dangerous, however you should also read the user reviews.

Uninstalling this variant: You could remove the entire program McAfee SiteAdvisor or McAfee, Inc. using Windows Control Panel.

Recommended: Identify SiteAdv.dll related errors

Important: Some malware camouflages itself as SiteAdv.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the SiteAdv.dll process on your PC to see if it is a threat. If SiteAdvisor 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

SiteAdv.dll is related to SiteAdvisor software.for McAfee
  Michael   (further information)
This is a component of SiteAdvisor. Site Manager, from McAfee, is a security application designed to determine how safe the sites visited by the user are.
McAfee - web site advisor, all should use it and add your advice on bad sites.

Rating chart

Summary: Average user rating of SiteAdv.dll: based on 10 votes with 3 user comments. 7 users think SiteAdv.dll is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users think it's neither essential nor dangerous. 2 users don't grade SiteAdv.dll ("not sure about it").

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Best practices for resolving SiteAdv issues

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

SiteAdv.dll [all]