What is WindowsLiveLogin.dll?

WindowsLiveLogin.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 Microsoft Windows Live ID Login Helper.

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WindowsLiveLogin.dll file information

The process known as Microsoft Windows Live ID Login Helper or Windows Live ID Sign-in Assistant or Windows Live Sign-in Assistant

belongs to software Microsoft Windows Live Login Helper or Windows Live ID Sign-in Assistant or Windows Live Login Helper Object (version 4232, 4311, 3165, 4225) or Microsoft Windows Live ID or Microsoft CoReXT or Windows Live ID Sign-in or Visual Basic for Applications Core or Visual Basic for Applications

by Microsoft (

Description: WindowsLiveLogin.dll is not essential for the Windows OS and causes relatively few problems. The WindowsLiveLogin.dll file is located in a subfolder of "C:\Program Files\Common Files" or sometimes in a subfolder of the user's "Documents" folder. Known file sizes on Windows 10/8/7/XP are 408,448 bytes (27% of all occurrences), 441,216 bytes and 17 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 9030D464-4C02-4ABF-8ECC-5164760863C6. The program has no visible window. It is able to monitor web browsers. There is no detailed description of this service. The file is not a Windows system file. The file is certified by a trustworthy company. The software can be removed using the Control Panel's Add\Remove programs applet. Therefore the technical security rating is 50% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to uninstall Windows Live Sign-in Assistant or Windows Live Anmelde-Assistent software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7), turn to the software developer, Live, for advice or verify that you have installed the latest version.

Recommended: Identify WindowsLiveLogin.dll related errors

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

Part of MS Windows Live
but if you don`t use internet explorer, then you don`t need it
Part of Windows Live. If this process is killed,Windows Update and Windows Genuine Validation will not function properly.
From wikipedia: Microsoft account (previously Microsoft Wallet, Microsoft Passport, .NET Passport, Microsoft Passport Network, and most recently Windows Live ID) is a single sign-on web service developed and provided by Microsoft that allows users to log in to many websites using one account. The service is commonly referred to as "MSN", because many services incorporating the Microsoft account are or were previously branded with the MSN brand.
  JPD   (further information)
part of windows live, jest google it, seems bug-e on google, i dont use it disabled it in ie
any proprams that change my broser home witout asking is not wellcome on my system.......
  No Way  
messenger dll
Just MSN login!
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of WindowsLiveLogin.dll: based on 64 votes with 9 reviews. 39 users think WindowsLiveLogin.dll is essential for Windows or an installed application. 5 users think it's probably harmless. 13 users think it's neither essential nor dangerous. 3 users suspect danger. 4 users think WindowsLiveLogin.dll is dangerous and recommend removing it. 2 users don't grade WindowsLiveLogin.dll ("not sure about it").

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Best practices for resolving WindowsLiveLogin issues

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

WindowsLiveLogin.dll [all]