BestCleaner Unwanted Application

What is BestCleaner?

BestCleaner is a deceptive application that supposedly improves computer performance by cleaning various junk files. Initially, this functionality may seem legitimate and useful, however, BestCleaner often infiltrates systems without users' permission.

Furthermore, it is likely to gather information relating to Internet browsing activity. For these reasons, this app is categorized as a potentially unwanted program (PUP).

Following infiltration, BestCleaner collects various information that might be personally identifiable (for example, Internet Protocol (IP) addresses, websites visited, pages viewed, search queries, computer specifications, etc.). The developers share this collected data with cooperating third party companies, who often misuse personal information to generate revenue.

Therefore, the presence of an information-tracking app such as BestCleaner on your system might lead to serious privacy issues or even identity theft. We strongly advise you to remove the BestCleaner PUP immediately. Data tracking is very common to adware-type applications, which generate various intrusive online advertisements.

These are delivered using a ‘virtual layer’ (a tool enabling display of third party graphical content on any site) and often conceal underlying content. Furthermore, the ads often redirect to malicious websites - thus, clicking them is risky and can result in various computer infections. All adware should be removed immediately.

BestCleanerer shares many similarities with hundreds of other potentially unwanted programs such as DiskPower, MaxPerforma, MyPC HealthCheck, and Win Tune Pro. These applications also offer a number of 'useful features'. In fact, potentially unwanted programs deliver little or no real value for regular users.

Their real and only purpose is to generate revenue for the developers. Programs such as BestCleaner collect personally identifiable information (which is later sold to third parties), deliver intrusive online advertisements (via the "Pay Per Click" [PPC] advertising model), and cause unwanted browser redirects.

How did BestCleaner install on my computer?

This PUP is free for anyone to download on its official website, however, developers also distribute BestCleaner using a deceptive software marketing method called "bundling" - stealth installation of third party applications with regular software. Users often rush the download/installation processes and skip most/all steps.

Aware of this, developers hide BestCleaner within the "Custom/Advanced" settings. Thus, skipping this section often leads to inadvertent installation of bogus programs, such as BestCleaner.

How to avoid installation of potentially unwanted applications?

Potentially unwanted programs are distributed using the bundling method. Therefore, closely analyze each step of the download/installation processes using the "Custom" or "Advanced" settings. Furthermore, cancel all additionally-included programs and decline all offers to download/install them.

Deceptive free software installer distributing BestCleaner PUP:

Screenshot of BestCleaner application:

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Quick menu:

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

BestCleaner 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 "BestCleaner version 1.0", select this entry and click "Uninstall" or "Remove".

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

Remove BestCleaner adware from Internet browsers:

At time of research, BestCleaner 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 bestcleaner 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 bestcleaner 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 "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.

Optional method:

Computer users who have problems with bestcleaner 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 bestcleaner 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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