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What is klwtbbho.dll?

The genuine klwtbbho.dll file is a software component of Kaspersky Anti-Virus by Kaspersky Lab ZAO.
Browser Helper Objects run automatically when an internet browser is opened. They are identified by a firewall as being a part of the browser. The file is part of the Kasperski Lab Anti-Virus software that provides real-time protection from the latest malware. Features include intelligent scanning and small, frequent updates while protecting a computer from known and emerging Internet-based threats. Kaspersky Lab is an international group of companies operating in almost 200 countries. Its head office is located in Moscow, Russia.

KLWTBBHO stands for Kaperski Lab Web Tool Bar Browser Helper Object

Klwtbbho.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 URL Advisor Plugin.

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

Klwtbbho.dll file information

The process known as URL Advisor Plugin or WebToolBar component or Kaspersky Anti-Virus (version 2011) belongs to software Kaspersky Anti-Virus (version 2010, 2013, 2012, 2011) or Kaspersky Internet Security (version 2013, 2011, 2014, 2012) or Kaspersky Total Security or Kaspersky Security Suite CBE (version 11) by Kaspersky Lab ZAO (www.kaspersky.com) or Kaspersky Lab (www.kaspersky.com).

Description: Klwtbbho.dll is not essential for the Windows OS and causes relatively few problems. Klwtbbho.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 798,912 bytes (22% of all occurrences), 191,160 bytes and 16 more variants. http://www.file.net/process/klwtbbho.dll.html 
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 E33CF602-D945-461A-83F0-819F76A199F8. The program is not visible. The klwtbbho.dll file is a Verisign signed file. The file is able to monitor web browsers. Klwtbbho.dll is digitally signed. The file is not a Windows core file. Therefore the technical security rating is 35% dangerous.

Uninstalling this variant: You can uninstall Kaspersky Internet Security or Kaspersky PURE, update it, or get help from the software vendor. Click on www.kaspersky.com/de/productupdates or www.kaspersky.com/productupdates to update it, click on redirect.kaspersky.com for support, or click on Kaspersky Internet Security or Kaspersky PURE in Windows Control Panel (Software or Programs category) to uninstall it.

Recommended: Identify klwtbbho.dll related errors

If klwtbbho.dll is located in a subfolder of the user's profile folder, the security rating is 35% dangerous. The file size is 405,944 bytes (50% of all occurrences) or 798,912 bytes. The program is not visible. The klwtbbho.dll file is able to change the behavior of, or monitor Internet Explorer. It is digitally signed. Klwtbbho.dll is not a Windows system file.

Uninstalling this variant: You can uninstall Kaspersky Internet Security or Kaspersky Internet Security 2013, update it, or get help from the software vendor. Click on www.kaspersky.ru/productupdates to update it, click on redirect.kaspersky.com for support, or click on Kaspersky Internet Security or Kaspersky Internet Security 2013 in Windows Control Panel (Software or Programs category) to uninstall it.

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

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

klwtbbho.dll [all]