How To Remove BestCleaner Unwanted Adware Program

BestCleaner is an adware disguised as a computer optimization tool. However, its main purpose is to hijack your main browsers and display unwanted advertisements. This is why it hasbeen classified as a potentially unwanted program and is detected by most antivirus software.

The program is not as aggressive and dangerous as some other adware. However, its behavior is considered unethical. It does not really help optimizing your machine and only slows it down by hijacking your browsers and displaying its own advertisements. It modifies several places of your system and launches itself. Finally, BestCleaner changes your browsing experience by silently replacing the content of various websites and redirecting to suspicious links.

You should remove BestCleaner as soon as you notice it present on your machine. The adware hinders your internet browsing and slows down the system. Also, various unwanted advertisements and redirects might result in further infections and more malware. This is why we recommend simply using the automatic removal tool listed below. Not only it will remove this adware but will also protect your computer from any other potential threats in the future. We have also included a manual removal guide for more experienced users but removing the symptoms does not guarantee that the virus will not come back if you do not have a proper antivirus software installed.

Recommended Method: Download BestCleaner Adware Removal Tool

Version:   All Updated:   2 days ago Compatible OS:   All
This is the most suitable program for automatically removing the threat and repairing your PC.
Works with: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP. Read instructions here
File name Size
mb3-setup.exe 56.5 MB

Click here to download alternative tool

What is BestCleaner adware?

As mentioned above, this adware is not very dangerous to your computer. It mainly focuses on earning advertisement revenue from displaying advertisements on hijacked browsers. However, it is considered unwanted program as it does not improve the performance of your computer. Instead, it slows the computer down by changing the content of visited webpages and leaving many components in your system in order to facilitate this strategy.

Some of the advertisements are displayed through redirects using Others appear as popups or are incorporated in the website content instead of original advertisements. The program usually redirects to surveys, other fake PC optimization tools and various full-page advertisements.

This deceptive program has several methods of distribution. Firstly, since it pretends to be a useful application some users might install it themselves. However, a more common method is to bundle BestCleaner with other software and install it together. Many users quickly skip through installation steps and leave the default options selected meaning that BestCleaner and other similar programs can get installed silently in the background.

Remove this adware as soon as possible in order to restore a normal browsing experience. Having BestCleaner on your computer slows down the system. It might also lead to further infections due to unwanted redirects and suspicious advertisements. We recommend using the automatic tool provided at the top of this page. However, if you feel confident editing important Windows system files and settings you can follow our manual removal guide. Have in mind that while you can manually remove the threat and the symptoms your computer still needs to be protected so the problem does not reoccur in the future.

Here are some screenshots of the adware:


 Manual Removal Instructions:

NB: Make sure you are comfortable with editing important Windows settings. In order to not only remove the symptoms but also any possible leftovers of the malware we recommend using the automatic tool provided above.

Make sure to bookmark this page, print it out or simply open on another device in order to access it after a browser or computer restart which may be required during the removal process.

Step 1:

Uninstall BestCleaner.

Start by opening the Programs and Features window using the following method:

Hold Windows () key and click R key while holding.

Enter the following in the field:


Click OK.

You might have to wait a bit before the list of all programs is loaded as it displays a list of all programs installed on your PC.

Look for the following program:

BestCleaner version 1.0

It is usually displayed as developed by a company called WeMonetize.

Right-click on it and choose Uninstall…

Step 2:

Delete registry values created by this virus.

Press and hold Windows () key and click R key.

Enter the following in the field:


Click OK.

Search for adware entries by pressing keyboard buttons CTRL + F and entering the adware name. Here are some examples:

best cleaner

Click Find Next.

Delete any registry entries associated with the virus.

Repeat the search until all entries are cleaned.

Make sure you delete only malicious entries as Windows registry is full of important information and deleting a critical entry might result in damaged operating system!

Step 3:

Delete the following folders:

C:\Program Files (x86)\BestCleaner
C:\Program Files\BestCleaner

Step 4:

Delete the shortcuts for all browsers on your computer as they have been changed by the adware.

Create them again in order to have clean browser start.

Alternatively, you can click Properties on each of the shortcuts and remove any “BestCleaner” or “WizzCaster” additions made to the Target field by the virus.

Step 5:

IMPORTANT: Now you will have to reset browser settings for each browser individually that you have installed on your computer. Alternativelly, you could simply reinstall them.

 Google Chrome:

Launch the browser and select More Tools, then click Extensions.

Check for any suspicious extensions.

Click Remove From Chrome for each unwanted or suspicious toolbar or extension (the trashcan icon on the right).

Go to Settings.

Scroll to the very bottom of the settings page and click Show advanced settings…

Scroll to the very bottom again and click Reset settings.

Click Reset.

 Mozilla Firefox:

Launch the browser and go to Add-ons.

Search for any suspicious toolbars and add-ons and Remove them.

We recommend going to Options (input about:preferences in your address field and press Enter) and clicking Restore to Default near the Home Page field.

You can also completely refresh the browser settings by entering the following in the address (URL) field:


Press Enter.

Click Refresh Firefox… and then click Refresh Firefox again.

 Microsoft Edge:

Since Microsoft Edge is not a separate program and is a core component of Windows 10 you should backup your computer or at least create a Restore Point before continuing.

Navigate to the following folder (where %username is your computer user name):


Clear all contents of the folder. Click CTRL + A to select everything and delete the contents.

Click Start (Windows logo).

Search for Windows PowerShell.

Right-click on the result.

Choose Run as administrator.

Paste the following command:

Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}

Press Enter.

The settings should now be reset to default.

 Internet Explorer:

Press and hold Windows () key and click R key.

Enter the following in the field:


Click OK.

Enter the following command in the appeared window:

RunDll32.exe InetCpl.cpl,ResetIEtoDefaults

Press Enter.

Check Delete personal settings.

Click Reset.

Alternatively you can run this command to delete all caches and settings:

RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 4351

After removing the virus

When you have finished removing the virus and reverting your browser settings make sure to protect your computer by installing a good antivirus suite that would identify the threats online and in programs you have downloaded. Also, if you are installing a new software, make sure it has nothing bundled in it by following the install wizard as well as searching for user reviews online.

CategoriesAdware Threats

Leave a Reply

Your email address will not be published. Required fields are marked *

Begin typing your search above and press return to search. Press Esc to cancel.