What is wltcore.dll?

Wltcore.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 Windows Live Toolbar Core.

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Wltcore.dll file information

The process known as Windows Live Toolbar Core or Windows Live Toolbar Beta Core belongs to software Windows Live Toolbar or Windows Live Essentials or Windows Live Toolbar Beta by Microsoft (

Description: Wltcore.dll is not essential for Windows and will often cause problems. The file wltcore.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 1,068,904 bytes (65% of all occurrences), 1,067,872 bytes, 1,067,352 bytes or 953,360 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 E15A8DC0-8516-42A1-81EA-DC94EC1ACF10. The program has no visible window. The wltcore.dll file is able to change the behavior of, or monitor Internet Explorer. It is digitally signed. There is no detailed description of this service. It is not a Windows core file. The program can be uninstalled in the Control Panel. Wltcore.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 52% dangerous; however you should also read the user reviews.

Uninstalling this variant: In case of any problems with wltcore.dll, you can also do the following:

Recommended: Identify wltcore.dll related errors

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

Wltcore.dll. Windows Live Toolbar Beta Core is a process file from Microsoft Corporation belonging to product Windows Live Toolbar Beta. In total there are 4 launchpoints for this file . There are 4 different variations of the file in our database and the file is digitally signed from Microsoft Corporation - Microsoft Time-Stamp Service We do not recommend removing digitally signed files from Microsoft Corporation
  Captian Serenity   (further information)
unique ID of this BHO is E15A8DC0-8516-42A1-81EA-DC94EC1ACF10 resides on C: Program Files\Windows Live\Toolbar\ and is a BHO therefore not a necessary file. Recommend removal.
  Richard Hudon  

Summary: Average user rating of wltcore.dll: based on 3 votes with 2 user comments. One user thinks wltcore.dll is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. One user suspects danger.

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Best practices for resolving wltcore issues

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

wltcore.dll [all]