Mahjong World Contest Ads

Mahjong World Contest removal instructions

What is Mahjong World Contest?

The Mahjong World Contest application claims to allow users to play an addictive Flash game. Although this may seem a legitimate and useful app, Mahjong World Contest is classed as adware and a potentially unwanted program (PUP). There are two main reasons for these negative associations. Firstly, Mahjong World Contest is likely to install on the system without the user's permission. Secondly, this application continually monitors users' Internet browsing activity and displays various intrusive online advertisements.

Mahjong World Contest displays pop-up, interstitial, banner, in-text, and other types of advertisement. It employs a virtual layer allowing placement of various graphical content on any website visited. Note that this content does not originate from the visited site. In some instances, ads pop-up as new browser tabs or windows, thereby increasing the chance of accidental clicks. After clicking these ads, users are mostly redirected to commercial websites such as online stores, however, some may redirect to a rogue websites containing infectious content - this situation can lead to high-risk computer infections. In addition, users' Internet browsing activity is continually tracked, since Mahjong World Contest records various information such as Internet Protocol (IP) addresses, language settings, websites visited, pages viewed, search queries, etc. This collected information may contain personally identifiable details that are later shared with third parties. Therefore, the presence of Mahjong World Contest on your system might cause serious privacy issues or even identity theft.

Mahjong World Contest Privacy Policy regarding information sharing:

We may share the information that We collect about You, including personal information collectively, "information"), as follows: ... Other Third Parties. We may disclose the information We collect about You to other third-parties for marketing, advertising, research, products and/ or other services. ...

As with regular adware, Mahjong World Content shares many similarities with other apps including SpeedGuard, Kellystoys, Deal Barium, and hundreds of others. These apps promise to enable useful features simply to persuade users to install. Once installed, however, they only display advertisements and collect information to generate revenue for the developers. These applications provide no real value for the user.

How did Mahjong World Contest install on my computer?

Mahjong World Contest has an official download website, however, it is also distributed using a deceptive software marketing method called 'bundling' - stealth installation of third party apps with regular software. Research shows that most users do not pay enough attention when downloading and installing software, which is why bundling is so popular and effective. Rogue applications such as Mahjong World Contest are usually hidden within the 'Custom' or 'Advanced' installation section - by skipping this section, users often inadvertently install Mahjong World Contest and other similar apps.

How to avoid installation of potentially unwanted applications?

When downloading from a freeware download website, select the direct download link (if provided). Most sites demand use of their 'download applications' - in this case, follow each step and decline all offers to install third party applications. In addition, installation of all applications should be performed with the 'Custom' or 'Advanced' options - this will reveal any bundled programs listed for installation and allow you to cancel them. The key to computer safety is caution. Never rush the procedures and pay close attention to all steps.

Mahjong World Contest adware installer set-up:

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Quick menu:

• What is Mahjong World Contest?
• STEP 1. Uninstall Mahjong World Contest application using Control Panel.
• STEP 2. Remove Mahjong World Contest adware from Internet Explorer.
• STEP 3. Remove Mahjong World Contest ads from Google Chrome.
• STEP 4. Remove 'Ads by Mahjong World Contest' from Mozilla Firefox.
• STEP 5. Remove Mahjong World Contest ads from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Mahjong World Contest adware removal:

Windows 11 users:

Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.

Windows 10 users:

Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.

Windows 7 users:

Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.

macOS (OSX) users:

Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.

In the uninstall programs window, look for "Mahjong World Contest", select this entry and click "Uninstall" or "Remove".

After uninstalling the potentially unwanted program that causes Mahjong World Contest ads, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.

Remove Mahjong World Contest adware from Internet browsers:

At time of research, Mahjong World Contest did not install its browser plug-ins on Internet Explorer, Google Chrome, or Mozilla Firefox, however, it was bundled with other adware. Therefore, you are advised to remove all potentially unwanted browser add-ons from your Internet browsers.

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

Remove malicious add-ons from Internet Explorer:

Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".

Optional method:

If you continue to have problems with removal of the mahjong world contest adware, reset your Internet Explorer settings to default.

Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.

Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.

Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.

In the opened window, select the Advanced tab.

Click the Reset button.

Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.

Remove malicious extensions from Google Chrome:

Click the Chrome menu icon (at the top right corner of Google Chrome), select "Tools" and click "Extensions". Locate all recently-installed suspicious browser add-ons, select these entries and click the trash can icon.

Optional method:

If you continue to have problems with removal of the mahjong world contest adware, reset your Google Chrome browser settings. Click the Chrome menu icon  (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.

After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.

In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.

Remove malicious plug-ins from Mozilla Firefox:

Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with mahjong world contest adware removal can reset their Mozilla Firefox settings.

Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.

Select Troubleshooting Information.

In the opened window, click the Refresh Firefox button.

In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.

Remove malicious extensions from Safari:

Make sure your Safari browser is active, click Safari menu, and select Preferences....

In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.

Optional method:

Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...

In the opened window select all history and click the Clear History button.

Remove malicious extensions from Microsoft Edge:

Click the Edge menu icon  (at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.

Optional method:

If you continue to have problems with removal of the mahjong world contest adware, reset your Microsoft Edge browser settings. Click the Edge menu icon  (at the top right corner of Microsoft Edge) and select Settings.

In the opened settings menu select Reset settings.

Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.

• If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.

Summary:

Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.

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