Great Type Captcha Virus Removal

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Great Type Captcha

Great Type Captcha is a rogue browser add-on that tends to generate massive amounts of web ads on your screen during browsing sessions. Great Type Captcha integrates ad-generating components in the infected browser in order to facilitate its advertising practices. 

Great type captcha

In case that you have recently been getting interrupted by annoying ads “generated/brought to you by Great Type Captcha” while browsing the web, then it is important for you to know that you are most probably dealing with a kind of potentially unwanted application from the browser hijacker type. This application is developed by a group of developers who promote it as a free tool said to enhance users’ browsing experience.

Greattypecaptcha top

Greattypecaptcha top can easily get added to browsers like Firefox, Chrome or Edge. if you cannot remember installing Greattypecaptcha top in your system, then it means that you have most probably allowed its installation while downloading and installing other free software on your PC.

Such distribution practices are known as software bundling and are often used for the distribution of browser hijacker, browser hijackers and other potentially unwanted applications.

Once find its way into your machine, the very first thing that it usually does is it changes the way your default browser behaves. will modify your Internet settings.

For instance, you may notice that some unknown browser extensions, add-ons, and plug-ins have been added to your browser without your approval. However, one of the most obvious signs indicating that you are currently dealing with a browser hijacker is the appearance of hundreds of unwanted advertisements on your computer screen. Ads like Index for Captchas,, etc. Typically, these adverts are displayed in the form of suddenly popping-up messages, banner ads, in-text links and similar notifications.

Once clicked, they may often redirect you to other sites where you may get tricked into downloading some software, installing some updates or purchasing products with dubious quality. Most of the ads may claim to help you save money during your online shopping sessions. However, you should be aware of the fact that it is not a good idea to click on every randomly displayed message that shows on your screen because, thanks to methods like malvertising, many hackers distribute threats like ransomware, Trojans and other nasty viruses. That’s why, to avoid the risks of interacting with sketchy content, we advise you to uninstall Great Type Captcha and remove its ads with the help of the instructions below.

Why do Great Type Captcha ads appear on your PC?

Generally, the main purpose of the annoying ads displayed by Great Type Captcha is to redirect you to third-party websites, which are seeking to increase their web page ranking, promote their products or services and gain popularity over the Internet. The goal of the browser hijacker isn’t to harm you or to corrupt your PC, thus, it is incorrect to categorize it as high-risk malware and to put it next to threats like spyware, Trojans or ransomware. Still, due to its irritating ad interruptions, many people prefer not to keep such software on the system and use manual instructions or professional removal tools to uninstall it and have its ads permanently removed.

How to prevent browser hijacker invasions?

In order to avoid the infiltration of such browser hijacker-type applications on your computer, you should start paying attention to each and every installation step of freeware and shareware applications and different bundles. For that, make sure that you follow the below-mentioned steps, which will help you protect your system from Great Type Captcha or similar applications.

  • First, try to download software directly from its official website and avoid non-reputed software sources, spam, freeware, shareware, etc.
  • Second, read the EULA, the Privacy Policy and other fine print related to the program that you want to install.
  • Third, always select the Custom or Advanced options when installing any new apps.
  • Finally, uncheck any additional or recommended installs that you aren’t familiar with.


NameGreat Type Captcha
TypeBrowser Hijacker
Danger LevelMedium (nowhere near threats like Ransomware, but still a security risk)
Detection Tool

*Source of claim SH can remove it.

Remove Great Type Captcha Virus

If you want to effectively remove Great Type Captcha, you’ll need to search for files associated with the browser hijacker in a few different places on your computer and delete any data, settings, or processes that are connected to it. In a nutshell, here is the order in which you should proceed:

  • If you notice any Great Type Captcha-related processes running on your computer, stop them and remove the files associated with them.
  • Make sure that Great Type Captcha has not made any modifications to the hosts file, startup items, DNS settings and the System Registry.
  • Uninstall any rogue or suspicious applications that you detect on your computer.
  • Remove all hijacker-related extensions and add-ons from the browsers installed on your computer and reset their settings to their default values.

Here is a detailed Great Type Captcha removal guide if you need more information and assistance on how to do the above:


If you want to complete this Great Type Captcha removal guide from from start to finish, be sure to Bookmark this page in your browser so that you can return to it whenever you need to. It’s also an option to open the guide on your phone or other mobile device, which will provide you uninterrupted access to the instructions.

Next, using the instructions provided in this link, restart your computer in Safe Mode. The suspicious activities connected to the hijacker will be easier to detect in this way since the system will only execute the most essential apps and tasks



*Source of claim SH can remove it.

If you aren’t an expert it might be difficult to tell which processes on your computer are connected to the unwanted program. That’s why we’ve included a robust scanner in this step that you can use to check any process that catches your eye due to its odd name or unusually high resource use.

Click the Windows Start Menu button (bottom left of the screen) and type Task Manager into the search box, then press Enter.

In the Task Manager, select “Processes” (In Windows 8 and 10 select “Details”) and look for any processes associated with Great Type Captcha and its activities.

Right-click on any process that looks suspicious and select Open File Location to view its files:


Next, scan the process’s files for malicious code using the scanner provided below:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
This scanner is free and will always remain free for our website's users.
This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
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Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
    This scanner is based on VirusTotal's API. By submitting data to it, you agree to their Terms of Service and Privacy Policy, and to the sharing of your sample submission with the security community. Please do not submit files with personal information if you do not want them to be shared.

    To be safe, if any of the files are flagged as potentially harmful, you should End the processes (right-click on it and select “End Process“) and remove the potentially harmful files and their folders from the computer.

    If you find more than one suspicious process, you should scan its files as well in order to ensure that nothing questionable is operating on your system.


    Ad-generating and page-redirecting activities may begin as soon as the computer switches on, especially if the browser hijacker has added one or more components to the startup list.

    To check if that is the case, use the Start menu search box to search for msconfig and hit Enter. After that, go to the Startup tab in System Configuration and uncheck the boxes next to any items you’re certain are associated with Great Type Captcha and then click OK to save your changes.



    *Source of claim SH can remove it.

    In the fourth step, copy the following line and paste it into Start menu search bar:

    notepad %windir%/system32/Drivers/etc/hosts

    Open the file by pressing Enter and scrolling to the bottom until you see Localhost in the text. Let us know in the comments area below if you see a number of strange-looking IPs underneath Localhost (as shown in the image below). We’ll take a look at them and get back to you if anything has to be removed.

    hosts_opt (1)

    Next, search for Network Connections in the Start menu search bar and open it. Reverse any DNS changes that Great Type Captcha may have made by following the instructions below:

    1. Right-click on the default Network Adapter and choose Properties from the pop-up list of options.
    2. Select Internet Protocol Version 4 (ICP/IP) in the newly opened window, and then select Properties (located at the bottom).
    3. Choose Obtain DNS server address automatically and click on Advanced at the bottom.
    4. Open the DNS tab in the Advanced TCP/IP settings window and remove any rogue DNS entries from the field. Click OK to confirm your changes.

    In the fifth step, you must search your system’s registry for files and folders associated with Great Type Captcha and delete them. The browser hijacker may re-install itself and start bothering you again if you don’t do this.

    It’s important to note, though, that any modifications or deletions that you make to the registry, which are not linked to Great Type Captcha, might have an effect on the general stability and performance of the operating system. For this reason, we suggest that you use a professional removal program to prevent any accidental system damage that may result from incorrect removals, especially if you are not an expert.

    The Registry Editor can be opened by searching for Regedit in the Windows search bar and pressing Enter.

    Inside the Registry Editor, press CTRL and F to enter the name of the browser hijacker that you want to remove. Delete any files and directories that are found by right-clicking on them.

    If you don’t get any results from the name search, you may manually search each of the following directories for new files and folders with suspicious names:

    • HKEY_CURRENT_USER—-Software—–Random Directory.
    • HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    • HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

    In many cases, browser hijackers are delivered to the system via other apps and their installers, which include a hijacker component. If you just installed a new app, or if you believe there is software on your computer that has brought Great Type Captcha to your system, enter appwiz.cpl in the Start menu search field and hit Enter.

    Once the Control Panel window is opened, you can quickly remove any apps you suspect are connected to the browser hijacker. If you sort the applications by date of installation, you may be able to narrow your search to those that were installed around the time that Great Type Captcha began to bother you.


    • If you want to remove Great Type Captcha permanently, it’s necessary to remove all hijacker-related components and settings that the hijacker may have installed without your permission in each of the browsers that you have on your system.

    To do that, right-click on the browser’s shortcut icon and select Properties, just as it is shown on the example image below:


    After that, in the Properties window go to Shortcut. 

    Pay attention to the Target section and, remove everything that has been added after .exe.

    Browser Hijacker Removal Instructions

    Next, open the browser that you want to check and click on its main menu icon. Typically, you can find it in the upper right corner for Internet Explorer, Chrome, and Firefox and in the upper left for Opera.

    Then, from the slide-down menu, select Add-ons/Manage Add-ons/More Tools and then click on the Extensions tab/sub-menu.

    In the list of Extensions, disable and remove any items that you believe may be causing interruptions to your Internet surfing.

    ie9-10_512x512  Remove Great Type Captcha from Internet Explorer:

    pic 3

    firefox-512 Remove Great Type Captcha from Firefox:

    pic 6

    Next, click again the main menu icon of the browser and select the Internet Options or Settings, depending on the browser. Carefully check if the homepage address has been replaced with a sponsored one and remove it in case that the URL that you see is not the homepage that you want.

    If you believe anything is part of the hijacker infestation but are unsure whether it has to be deleted or not, please use the professional removal tool that we recommend on this page or check any suspicious-looking file with our free online virus scanner.

    What is Great Type Captcha?

    Great Type Captcha is a rogue browser hijacker variant used for aggressive online marketing that uses underhanded methods to popularize different sites and products. The usual way Great Type Captcha is able to enter a computer is through the help of other software that it is bundled with.

    If you have recently installed any free applications or programs or if you have interacted with suspicious online links or permission requests and after that aggressive ads started appearing in your browser no matter what site you are visiting, then you have most likely been infected by a browser hijacker. This type of app is not as problematic as more advanced threats, the likes of Ransomware, Trojans, or Spyware, but is also definitely not something that you should allow to stay on your computer. In addition to being irritating with its ads, Great Type Captcha may also jeopardize the system’s security and cause other issues such as performance slow-downs, browser freezes and crashes, and more.

    How dangerous is Great Type Captcha?

    Great Type Captcha is relatively dangerous due to its uncontrollable stream of ads and the automatic page redirects that it’s likely to trigger. In addition, another factor that makes Great Type Captcha potentially dangerous is the changes it makes in the system that could lead to its exposure to malware.

    One of the most unpleasant characteristics of browser hijackers like Great Type Captcha is their ability to alter some of the system and browser settings. The reason they do this is twofold – on the one hand, they make those changes to be more effective at advertising various content from within your browser. This is why they may replace the starting page address or the default search engine as well as add new, mostly unwanted extensions to the browser. On the other hand, Great Type Captcha and other similar hijackers could also make changes in the system Registry, the Hosts file, or the network DNS settings. Such changes are introduced in order to make the hijacker more difficult to remove, thus increasing the time during which it will be present in the system which, in turn, increases the potential amount of revenue that the hijacker generates through ads.

    How to remove Great Type Captcha?

    To remove Great Type Captcha, it’s important to first clean your computer from rogue programs and processes before you take care of the browser. Once the system is cleaned, you can then remove Great Type Captcha from your browsers by deleting unwanted extensions and clearing the browser data.

    The following four steps give a general overview of how the deletion of Great Type Captcha needs to be performed for it to be effective and to prevent the hijacker from returning on its own.

    1. The first step is to check the Uninstall a Program section of the Control Panel and delete from it any recently installed program that seems untrusted and potentially related to the hijacker.
    2. The next step is to stop any questionable processes in the Task Manager that you have sufficient reason to believe are rogue.
    3. Thirdly, check the system Registry, the Hosts file, the Task Scheduler, the DNS settings, and the Startup items for hijacker-introduced changes and revoke any such changes.
    4. Finally, uninstall any rogue/unknown extensions from all your browsers and then clear the cookies, caches, and history of the browsers.


    About the author


    Violet George

    Violet is an active writer with a passion for all things cyber security. She enjoys helping victims of computer virus infections remove them and successfully deal with the aftermath of the attacks. But most importantly, Violet makes it her priority to spend time educating people on privacy issues and maintaining the safety of their computers. It is her firm belief that by spreading this information, she can empower web users to effectively protect their personal data and their devices from hackers and cybercriminals.

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