Content Cleaner Unwanted Application

What is Content Cleaner?

The Content Cleaner application claims to improve users' Internet browsing security by allowing them to delete all temporary files. Initially, Content Cleaner may seem a legitimate and useful application, however, this app is often distributed as a 'bundle' with other apps. It infiltrates systems without users’ permission and is, hence, classed as a potentially unwanted program (PUP).

Although Content Cleaner is a legitimate program, many PUPs are dubious. This type of software often generates intrusive online advertisements, causes unwanted browser redirects, and collects browsing-related data. The generated advertisements (pop-up, interstitial, transitional, full-page, search, banner, etc.) do not originate from users' visited websites.

They usually conceal underlying web content, significantly diminishing the Internet browsing experience. In addition, some lead to malicious sites containing bogus content. Thus, clicking them is risky and may lead to further adware or malware infections. In addition, these applications collect various information that may be personally identifiable.

Recorded data is shared with third parties who can misuse personal data to generate revenue. Tracking of browsing information can lead to serious privacy issues or even identity theft.

Content Cleaner poses no direct threat to users' privacy or Internet browsing safety, however, by stealthily running in the background, this app uses computer resources, thereby diminishing system performance. If you believe that Content Cleaner infiltrated your system without permission, uninstall this PUP immediately.

Research shows that many PUPs falsely claim to provide 'valuable' features to trick users to install, however, after infiltrating the system, they provide no real value for users. Their purpose is to generate revenue for the developers. Rather than enabling any of the promised functions, these apps generate intrusive online advertisements, cause unwanted browser redirects, and track Internet browsing activity.

How did Content Cleaner install on my computer?

Research shows that Content Cleaner is mostly distributed as a 'bundle' with other software. Developers hide this PUP within the 'Custom' or 'Advanced' settings (that are often skipped by many users). By rushing the download/installation processes, users expose their systems to risk of various infections.

The developers are concerned only with the amount of revenue generated (which is dependent on the number of distributed PUPs) and, thus, do not properly disclose installation of rogue software.

How to avoid installation of potentially unwanted applications?

The key to computer safety is caution. The download and installation processes should be performed using the 'Custom' or 'Advanced' settings. Bundled software (that should be cancelled) is mostly concealed and, therefore, it is important to closely analyze each step of these processes.

Official Content Cleaner installer set-up:

Deceptive free software installer distributing Content Cleaner PUP:

Screenshot of Content Cleaner application:

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Quick menu:

• What is Content Cleaner?
• STEP 1. Uninstall Content Cleaner application using Control Panel.
• STEP 2. Remove unwanted add-ons from Internet Explorer.
• STEP 3. Remove malicious plug-ins from Google Chrome.
• STEP 4. Remove rogue add-ons from Mozilla Firefox.
• STEP 5. Remove unwanted extension from Safari.
• STEP 6. Remove rogue plug-ins from Microsoft Edge.

Content Cleaner PUP 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 "Content Cleaner", select this entry and click "Uninstall" or "Remove".

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

Remove Content Cleaner PUP from Internet browsers:

At time of research, Content Cleaner 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 content cleaner potentially unwanted program, 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 content cleaner potentially unwanted program, 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 on "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with content cleaner potentially unwanted program 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 content cleaner potentially unwanted program, 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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