Chatzum toolbar

Also Known As: Redirect
Type: Browser Hijacker
Damage level: Medium
Distribution: High
Damage Level

What is Chatzum Toolbar and how to remove it?

Chatzum toolbar is a browser add-on, which enhances Facebook's photo viewing experience - it magnifies photos when hovering over them. While this function can be useful for social network users, Chatzum is categorized as an unwanted program, due to its deceptive methods of installation and also for not providing a full uninstall facility. By default, when installed on your computer, Chatzum toolbar automatically changes your browser's homepage to

The search engine presented within this new homepage is powered by Google search, with slight modifications, making sponsored results difficult to distinguish from organic ones. Furthermore, if you decide to remove Chatzum toolbar, it is necessary to take several manual steps before this toolbar is removed from all of your Internet browsers. The uninstall process via your operating system control panel will not revert your browser settings to the default - your homepage will remain set at and your browsers will retain this toolbar. Chatzum toolbar is not a virus, but rather, a toolbar employing a deceptive strategy to prevent computer users from fully uninstalling it using Control Panel. If you have not willingly installed this toolbar, or did so inadvertently, remove it from your computer immediately.

chatzum toolbar

Chatzum toolbar can be downloaded from its homepage or through software distribution websites. This toolbar can also come as part of a bundle of free downloadable sofware. To avoid installing Chatzum toolbar, or other similar unwanted toolbars inadvertently, always carefully study the installation windows for software (especially free software) that you have downloaded from the Internet. If you install your software recklessly (by just clicking 'next' in the installation process), your Internet browsers can easily be crowded with unwanted toolbars such as Chatzum. To remove this browser add-on from your PC, use these removal instructions.

Chatzum Toolbar removal:

chatzum uninstall

Windows 7 users:

Click "Start" ("Windows Logo" at the bottom left corner of your desktop), choose "Control Panel". Locate and click "Programs and Features". Look for "ChatZum Toolbar" and click Change, in the open window click "Next".

Windows XP users:

Click "Start", choose "Settings" and click "Control Panel". Locate and click "Add or Remove Programs". Look for "ChatZum Toolbar" and click Remove.

After uninstalling ChatZum Toolbar, scan your computer for any remaining unwanted components. Use recommended malware removal software.

Remover for Chatzum toolbar

If you need assistance removing Chatzum toolbar, give us a call 24/7:
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ChatZum Toolbar removal from browsers:

Video demonstrating how to remove potentially unwanted browser add-ons:

Uninstalling the ChatZum Toolbar is not adequate; remove the remaining unwanted components from your Internet browsers manually.

Remove ChatZum Toolbar from Internet Explorer:

chatzum toolbar internet explorerClick "Tools" (or the gear icon in Internet Explorer 9), select "Manage Add-ons". Look for Zako Solutions LTD related entries (ChatZum Toolbar, TBSB09850) and disable them. After removing the add-ons, change your homepage from to your preferred domain - Click "Tools" (or the gear icon in Internet Explorer 9) select "Internet Options", in the opened window remove and enter your preferred domain, which will open each time you launch Internet Explorer.

Remove ChatZum Toolbar from Google Chrome:

chatzum toolbar google chrome

Click on the wrench icon (top right of the screen), select "Tools" and click on "Extensions".  Locate "" and "New Tab", select them and click on the trash can icon. To change your homepage from to you preferred domain, click on the wrench icon, select "Settings". In the "On startup" section, click "set pages", hover your mouse over ChatZum Search and click the x symbol. Now you can add your preferred website as your homepage.

Remove ChatZum Toolbar from FireFox:

chatzum toolbar firefox

Click "Tools" (at the top of the window), select "Add-ons". Click on "Extensions" and disable "ChatZum Toolbar". To reset your homepage, click "Tools", then select "Options", in the open window, remove and enter your preferred domain.


A browser hijacker is a type of adware that alters user's Internet browser settings by changing one's homepage and default Internet search engine to some unwanted website. Most commonly this type of adware infiltrates user's operating system through free software downloads. While browser redirects might seem as a low risk security infection, computer users should know that the websites to which they are being redirected to commonly contain deceptive online advertisements and the Internet search engine that is presented in such websites might return shady Internet search results. Using such websites for one's daily Internet searches might easily end up in privacy issues, identity theft or malware infections.

A computer that is affected by a browser hijacker is exposed to high risk security infections. To prevent further privacy and security issues it's recommended removing any Internet browser settings altering adware as soon as possible. Here are some examples of free software download clients that are used in Chatzum toolbar distribution:

Free software download managers distributing browser hijackers

To avoid installation of Chatzum toolbar be very attentive when downloading and installing free software. If your download is managed by a download client be sure to opt out of installing advertised toolbars or applications that seek to change your homepage and default Internet search engine:

Declining installation of browser hijackers

Some of the mentioned free software download clients don't allow downloading the chosen free program if user decides to decline installation of it's offered toolbars, in such cases it's recommended to cancel the installation and look for an alternative download source.

Symptoms indicating that your Internet browsers are affected by a browser hijacker:

  • Your homepage and/or default Internet search engine is changed.
  • Appearance of new toolbars.
  • Slow performance of Internet browsers.
  • New Bookmarks or Favorites added.
  • You can't change your homepage or default search engine.
  • You see online ads on your screen that are not served by the website.
  • You get redirected to pages you never intended to visit.

If you are experiencing problems while trying to remove Chatzum toolbar from your Internet browsers, please ask for assistance in our malware removal forum.

If you have additional information on Chatzum toolbar or it's removal please share your knowledge in the comments section below.


#17 Martin 2013-06-02 05:16
Quoting marta:
Hi there,

I have tried to remove the toolbar but it looks impossible. I have Windows 7. When clicking on "Change", the computer asks me to authorize Au_.exe in order to proceed, and of course i haven't done it. Then the process stops and a message comes out saying that the process requires admin authorization and so it will be aborted.

Instead, for all the other softwares installed on the computer there are both the options "Change" and "Remove" and so it's immediate to remove them. What's wrong? I would much appreciate your help.


I have the same problem. Have you received an answer? Thanks.
#16 siddhartha vasireddy 2013-01-14 11:57
very thankful to u
#15 Neale 2013-01-09 06:07
Thanks this is very helpful. I'm stuck with this pain-in-the-ass on Firefox, can you suggest how to get rid of this pervasive hidden creepy little program?
#14 dennis 2012-12-21 11:30
whomever created that crap should be shot
#13 spburns 2012-10-28 23:17
I removed chatzum and the au .exe request was made and thinking it was part of the removal i oked it. Next thing i know computer has crashed and wont reboot. I believe this is malicious
#12 Lavonne Newman 2012-10-08 22:31
Thank you, thank you, thank you!!!!
#11 marta 2012-10-05 16:47
Hi there,

I have tried to remove the toolbar but it looks impossible. I have Windows 7. When clicking on "Change", the computer asks me to authorize Au_.exe in order to proceed, and of course i haven't done it. Then the process stops and a message comes out saying that the process requires admin authorization and so it will be aborted.

Instead, for all the other softwares installed on the computer there are both the options "Change" and "Remove" and so it's immediate to remove them. What's wrong? I would much appreciate your help.

#10 LipoLipo 2012-10-03 20:33
But I also hate the sneaky way it took over my browser without my permission. That is against all moral/ethical codes, and we might consider it a malware to be blocked by all browsers.

#9 LipoLipo 2012-10-03 20:31
I tried changing it using the Manage search engines options. Okay you can remove Chatzum as search engine from the list (its called "search safer"....another sneaky attempt to hide themselves). But if you try getting google back on, you may have to also remove Yahoo as a search engine!!! these search engine wars are ridiculous.

So, I managed to get google back on.

The reason I hate Chatzum is that when your internet connection is down, it somehow makes things worse by not remembering the last URL you input. You then get a reject from the browser when you next try getting back on the internet. Chatzum creates a list of chatzum urls in the address box that is rejected by the server or internet. How stupid. Most other search engines don't have this problem . I would have reluctantly continued use of chatzum if there wasn't this glitch.

#8 LipoLipo 2012-10-03 20:30
I could not find the google search b0x because Chatzum had taken is called Search Safer toolbar and has no chatzum logo........hence very sneaky (and I don't like sneaky). Actually in that search box there is the drop down list of search engines. I discovered that there were "tons" of them in my list.

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