How to remove Captcha decode pop-ups (Virus removal guide)

What is Captcha decode?

Captcha decode is a scam page which attempts to trick people into accepting push notifications via the web browser. Push notifications are originally created to alert users of recently published content. Scammers abuse ‘browser notification feature’ to avoid anti-virus and ad blocker applications by showing unwanted adverts. These advertisements are displayed in the lower right corner of the screen urges users to play online games, visit suspicious web-pages, install web-browser extensions & so on.

Captcha decode asks you to click on the ‘Allow’ button in order to to enable Flash Player, download a file, access the content of the web-page, watch a video, connect to the Internet, and so on. If you click on the ‘Allow’ button, this web site gets your permission to send push notifications in form of pop up adverts in the right bottom corner of your desktop.

Threat Summary

Name	Captcha decode pop-up, “Captcha decode virus”
Type	spam push notifications, browser notification spam, pop-up virus
Distribution	social engineering attack, PUPs, dubious popup ads, adware
Symptoms	ads in the lower right corner of Window your browser settings are being changed without your request unclosable window appear and recommend fake Flash updates fast Internet but slow browsing speeds
Removal	Captcha decode removal guide

How did you get infected with Captcha decode pop ups

These Captcha decode popups are caused by suspicious advertisements on the web pages you visit or adware software. By definition, adware is a piece of malicious programs which shows advertisements on a computer. However, people basically use the word ‘adware’ to describe a part of malware which shows unwanted ads to the user. In many cases, this kind of adware do not have any uninstall procedures and can use technologies that are similar to those used by malware to penetrate the device.

Adware usually is bundled within freeware which downloaded from the Net. Which means that you need to be proactive and carefully read the Terms of use and the License agreement properly. For the most part, adware software and PUPs will be clearly described, so take the time to carefully read all the information about the software that you downloaded and want to install on your personal computer.

Remove Captcha decode notifications from browsers

if you became a victim of scammers and clicked on the “Allow” button, then your web browser was configured to display unwanted ads. To remove the ads, you need to get rid of the notification permission that you gave the Captcha decode site to send notifications.

Google Chrome	Android
Just copy and paste the following text into the address bar of Google Chrome. chrome://settings/content/notifications Press Enter. Delete the Captcha decode site and other questionable sites by clicking three vertical dots button next to each and selecting ‘Remove’.	Tap ‘Settings’. Tap ‘Notifications’. Find and tap the browser that shows Captcha decode push notifications ads. Locate Captcha decode site in the list and disable it.
Mozilla Firefox	Edge
In the top right hand corner of the screen, click on the three bars to expand the Main menu. In the drop-down menu select ‘Options’. In the left side select ‘Privacy & Security’. Scroll down to ‘Permissions’ and then to ‘Settings’ next to ‘Notifications’. Locate sites you down’t want to see notifications from (for example, Captcha decode), click on drop-down menu next to each and select ‘Block’. Save changes.	In the right upper corner, click on the three dots to expand the Edge menu. Click ‘Settings’. Click ‘Advanced’ on the left side of the window. Click ‘Manage permissions’ button under ‘Website permissions’. Click the switch below the Captcha decode URL and each suspicious domain.
Internet Explorer	Safari
In the right upper corner of the browser, click on the gear icon (menu button). In the drop-down menu select ‘Internet Options’. Select the ‘Privacy’ tab and click ‘Settings under ‘Pop-up Blocker’ section. Locate the Captcha decode and click the ‘Remove’ button to remove the domain.	Go to ‘Preferences’ in the Safari menu. Open ‘Websites’ tab, then in the left menu click on ‘Notifications’. Locate the Captcha decode URL and select it, click the ‘Deny’ button.

How to remove Captcha decode ads from Chrome, Firefox, IE, Edge

We suggest opting for automatic Captcha decode pop ups removal in order to get rid of all adware related entries easily. This solution requires scanning the device with reputable anti malware, e.g. Zemana Free, MalwareBytes Anti Malware (MBAM) or HitmanPro. However, if you prefer manual removal steps, you can use the guide below in this article. Certain of the steps below will require you to exit this web-site. So, please read the few simple steps carefully, after that bookmark it or open it on your smartphone for later reference.

To remove Captcha decode pop ups, execute the steps below:

1. Remove Captcha decode notifications from browsers
2. How to manually get rid of Captcha decode
   • Remove dubious applications using Microsoft Windows Control Panel
   • Remove Captcha decode advertisements from Internet Explorer
   • Get rid of Captcha decode popup ads from Firefox
   • Remove Captcha decode ads from Chrome
3. Automatic Removal of Captcha decode pop up ads
4. Stop Captcha decode pop ups

How to manually get rid of Captcha decode

The most common adware can be deleted manually, without the use of antivirus or other removal utilities. The manual steps below will guide you through how to delete Captcha decode pop up advertisements step by step. Although each of the steps is very easy and does not require special knowledge, but you doubt that you can complete them, then use the free tools, a list of which is given below.

Remove dubious applications using Microsoft Windows Control Panel

We suggest that you begin the device cleaning procedure by checking the list of installed apps and remove all unknown or questionable programs. This is a very important step, as mentioned above, very often the harmful programs such as adware software and hijackers may be bundled with free programs. Remove the unwanted applications can get rid of the intrusive ads or web browser redirect.

Press Windows button , then click Search . Type “Control panel”and press Enter. If you using Windows XP or Windows 7, then click “Start” and select “Control Panel”. It will open the Windows Control Panel as shown in the figure below.

Further, click “Uninstall a program”
It will show a list of all apps installed on your computer. Scroll through the all list, and uninstall any suspicious and unknown apps.

Remove Captcha decode advertisements from Internet Explorer

If you find that IE web-browser settings like home page, new tab and search engine by default had been changed by adware that causes Captcha decode ads, then you may revert back your settings, via the reset internet browser procedure.

First, start the Microsoft Internet Explorer, click ) button. Next, click “Internet Options” as shown in the following example.

In the “Internet Options” screen select the Advanced tab. Next, click Reset button. The Internet Explorer will show the Reset Internet Explorer settings dialog box. Select the “Delete personal settings” check box and click Reset button.

You will now need to restart your device for the changes to take effect. It will get rid of adware that causes Captcha decode pop ups in your browser, disable malicious and ad-supported web browser’s extensions and restore the Microsoft Internet Explorer’s settings such as startpage, newtab page and search engine by default to default state.

Get rid of Captcha decode popup ads from Firefox

This step will help you get rid of Captcha decode popups, third-party toolbars, disable harmful add-ons and revert back your default home page, newtab page and search provider settings.

Run the Firefox and press the menu button (it looks like three stacked lines) at the top right of the web-browser screen. Next, press the question-mark icon at the bottom of the drop-down menu. It will show the slide-out menu.

Select the “Troubleshooting information”. If you are unable to access the Help menu, then type “about:support” in your address bar and press Enter. It bring up the “Troubleshooting Information” page as shown in the figure below.

Click the “Refresh Firefox” button at the top right of the Troubleshooting Information page. Select “Refresh Firefox” in the confirmation dialog box. The Firefox will begin a process to fix your problems that caused by the Captcha decode adware. When, it is finished, click the “Finish” button.

Remove Captcha decode ads from Chrome

The adware can change your Google Chrome settings without your knowledge. You may see an unrequested webpage as your search provider or startpage, additional plugins and toolbars. Reset Chrome internet browser will help you to delete Captcha decode pop up advertisements and reset the unwanted changes caused by adware software. When using the reset feature, your personal information such as passwords, bookmarks, browsing history and web form auto-fill data will be saved.

Open the Chrome menu by clicking on the button in the form of three horizontal dotes (). It will display the drop-down menu. Select More Tools, then click Extensions.

Carefully browse through the list of installed extensions. If the list has the plugin labeled with “Installed by enterprise policy” or “Installed by your administrator”, then complete the following guidance: Remove Google Chrome extensions installed by enterprise policy otherwise, just go to the step below.

Open the Google Chrome main menu again, click to “Settings” option.

Scroll down to the bottom of the page and click on the “Advanced” link. Now scroll down until the Reset settings section is visible, as displayed on the image below and click the “Reset settings to their original defaults” button.

Confirm your action, click the “Reset” button.

Automatic Removal of Captcha decode pop up ads

Malware removal utilities are pretty useful when you think your computer is hijacked by adware. Below we’ll discover best tools that can delete adware and Captcha decode popup ads from your device and internet browser.

How to remove Captcha decode ads with Zemana

Zemana is a free tool that performs a scan of your device and displays if there are existing adware, browser hijackers, viruses, worms, spyware, trojans and other malicious software residing on your computer. If malicious software is found, Zemana AntiMalware can automatically remove it. Zemana Free does not conflict with other antimalware and antivirus software installed on your PC.

Visit the page linked below to download Zemana Anti Malware. Save it directly to your MS Windows Desktop.

After the downloading process is done, close all windows on your computer. Further, start the setup file named Zemana.AntiMalware.Setup. If the “User Account Control” dialog box pops up as on the image below, click the “Yes” button.

It will display the “Setup wizard” that will help you install Zemana Anti Malware (ZAM) on the personal computer. Follow the prompts and do not make any changes to default settings.

Once installation is done successfully, Zemana will automatically run and you can see its main window as shown in the following example.

Next, click the “Scan” button for checking your device for the adware related to the Captcha decode pop-up advertisements. A scan may take anywhere from 10 to 30 minutes, depending on the count of files on your PC system and the speed of your computer. While the Zemana AntiMalware is scanning, you may see count of objects it has identified either as being malware.

Once that process is complete, the results are displayed in the scan report. When you are ready, click “Next” button.

The Zemana Anti-Malware (ZAM) will remove adware that causes Captcha decode pop-ups in your web browser and move the selected threats to the Quarantine. When that process is finished, you can be prompted to restart your PC system.

Get rid of Captcha decode ads from internet browsers with HitmanPro

Hitman Pro is a portable tool that detects and uninstalls unwanted software like browser hijackers, adware software, toolbars, other browser plugins and other malware. It scans your PC system for adware software which causes popups and produces a list of threats marked for removal. HitmanPro will only erase those unwanted apps that you wish to be removed.

Visit the page linked below to download the latest version of HitmanPro for Windows. Save it to your Desktop so that you can access the file easily.

Download and run HitmanPro on your PC. Once started, press “Next” button to start scanning your device for the adware that causes the intrusive Captcha decode popup ads. This process can take quite a while, so please be patient. When a threat is detected, the number of the security threats will change accordingly. .

After the scan is complete, it will show the Scan Results.

Review the scan results and then click Next button.

It will open a prompt, click the “Activate free license” button to start the free 30 days trial to get rid of all malware found.

Run MalwareBytes to remove Captcha decode pop-ups

You can remove Captcha decode advertisements automatically through the use of MalwareBytes. We advise this free malicious software removal utility because it can easily remove hijackers, adware software, potentially unwanted apps and toolbars with all their components such as files, folders and registry entries.

Installing the MalwareBytes Anti-Malware (MBAM) is simple. First you will need to download MalwareBytes Free by clicking on the link below.

When downloading is done, close all apps and windows on your device. Double-click the install file named MBSetup. If the “User Account Control” dialog box pops up such as the one below, click the “Yes” button.

It will open the Setup wizard that will help you install MalwareBytes AntiMalware on your personal computer. Follow the prompts and don’t make any changes to default settings.

Once install is finished successfully, press “Get Started” button. MalwareBytes Free will automatically start and you can see its main screen like below.

Now press the “Scan” button to perform a system scan for the adware that causes popups. This procedure can take quite a while, so please be patient. During the scan MalwareBytes Free will search for threats present on your PC system.

When MalwareBytes is done scanning your device, MalwareBytes will display a list of all items found by the scan. When you are ready, press “Quarantine” button. The MalwareBytes will remove adware which causes pop-ups and move the selected threats to the program’s quarantine. After disinfection is done, you may be prompted to reboot the device.

We recommend you look at the following video, which completely explains the procedure of using the MalwareBytes to remove adware software, browser hijacker and other malware.

Stop Captcha decode pop ups

In order to increase your security and protect your computer against new unwanted advertisements and harmful web-pages, you need to use ad blocking application that stops an access to harmful advertisements and web-pages. Moreover, the program may block the show of intrusive advertising, which also leads to faster loading of web-pages and reduce the consumption of web traffic.

1. Please go to the following link to download AdGuard. Save it on your Windows desktop or in any other place.
   
   

   Adguard download
   26627 downloads
   Version: 6.4
   Author: © Adguard
   Category: Security tools
   Update: November 15, 2018
   
2. After downloading it, start the downloaded file. You will see the “Setup Wizard” program window. Follow the prompts.
3. Once the setup is done, click “Skip” to close the install program and use the default settings, or click “Get Started” to see an quick tutorial which will help you get to know AdGuard better.
4. In most cases, the default settings are enough and you do not need to change anything. Each time, when you start your device, AdGuard will run automatically and stop unwanted advertisements, block Captcha decode pop-ups, as well as other malicious or misleading web pages. For an overview of all the features of the application, or to change its settings you can simply double-click on the icon called AdGuard, that may be found on your desktop.

Finish words

Once you have complete the steps shown above, your PC should be free from adware which causes popups and other malware. The IE, Google Chrome, Edge and Mozilla Firefox will no longer redirect you to scam web pages similar to Captcha decode. Unfortunately, if the steps does not help you, then you have caught a new adware, and then the best way – ask for help here.