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How to uninstall Disk Tuner from the operating system?

Also Known As: Disk Tuner potentially unwanted application
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove Disk Tuner from Mac?

What is Disk Tuner?

Disk Tuner is an app that scans Mac computers for duplicate files, junk files, installed software and offers to remove unwanted items to free up disk space. However, it is possible that its developers distribute it by using questionable methods, therefore, it increases a chance that some users may download and install it unknowingly. Apps that users download and install without intention to do so are called potentially unwanted applications (PUAs).

Disk Tuner unwanted application

The problem with some PUAs that scan computers for unwanted items (software, files), errors, malware, etc., is that they generate fake scan results and, do not remove any detected items unless users pay for their activation. Simply said, there are PUAs that are designed to trick users into purchasing them. It is unknown whether Disk Tuner is one these apps, however, there is such possibility. Also, it is worthwhile to mention that this app may be distributed alongside with some browser hijacker, adware-type app or PUA of other type.

Adware-type apps generate ads (for example, coupons, banners, surveys, pop-up ads) that often are designed to promote shady sites or even download and/or install unwanted apps by running certain scripts. Browser hijackers modify browser settings (like address of a default search engine, homepage and/or new tab) to promote some fake search engine (its address) and do not allow users to undo those changes unless users uninstall them.

Threat Summary:
Name Disk Tuner potentially unwanted application
Threat Type PUP (potentially unwanted program), PUA (potentially unwanted application), Mac malware, Mac virus
Supposed Functionality Disk cleanup
Detection Names (Application) Avast (MacOS:PuAgent-BQ [PUP]), AVG (MacOS:PuAgent-BQ [PUP]) ESET-NOD32 (OSX/DiskTuner.A Potentially Unwanted), F-Secure (Malware.OSX/Agent.ypavf), Full List Of Detections (VirusTotal)
Detection Names (Installer) Avast (MacOS:PuAgent-BQ [PUP]), AVG (MacOS:PuAgent-BQ [PUP]) ESET-NOD32 (OSX/DiskTuner.A Potentially Unwanted), Symantec (OSX.Malcol), Full List Of Detections (VirusTotal)
Symptoms A program that you do not recall installing suddenly appeared on your computer. A new application is performing computer scans and displays warning messages about 'found issues'. Asks for payment to eliminate the supposedly found errors.
Distribution Methods Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers.
Related Domains  
Damage Monetary loss (unnecessary purchase of fake software), unwanted warning pop-ups, slow computer performance.
Malware Removal (Mac)

To eliminate possible malware infections, scan your Mac with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
▼ Download Combo Cleaner for Mac
To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

More examples of potentially unwanted applications are MacFly Pro, MacClean360 and AweCleaner. Typically, such apps are not malicious, however, it is common for them to be monetized by offering users to use their full (paid) versions. As mentioned in the second paragraph, the problem with it is that those apps could be designed to generate fake results which means they would be useless (would not remove/fix any real issues).

How did potentially unwanted applications install on my computer?

It is common for PUAs to be offered in download and/or installation setups of other programs. This distribution/promotion method is known as "bundling". As a rule, users can decline unwanted offers via "Custom", "Advanced", "Manual" settings, or by unticking certain checkboxes. Although, not all users do that and that is how they allow for PUAs to be downloaded and/or installed alongside with other programs. Sometimes PUAs are distributed via deceptive advertisements by designing those ads to execute certain scripts. However, those ads do not cause unwanted downloads, installations if users do not click them.

How to avoid installation of potentially unwanted applications?

Various ads on questionable websites (e.g., pages related to gambling, adult dating, pornography) could be designed to promote other dubious sites or cause unwanted downloads. Therefore, such ads should not be clicked. Files, apps should be downloaded only from official websites (and via direct links). Third party downloaders, installers, Peer-to-Peer networks (like torrent clients, eMule), unofficial websites, etc., are not trustworthy. Downloads and installations should not be finished without checking "Advanced", "Custom" and other settings for unwanted offers. Unwanted, suspicious extensions, plug-ins or add-ons that are installed on a browser and applications of this kind that are installed on the operating system should be uninstalled. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate them.

Appearance of Disk Tuner application (GIF):

Appearance of Disk Tuner PUA (GIF)

Disk Tuner installation setup:

Installation setup of Disk Tuner PUA

Website promoting Disk Tuner application:

Website used to promote Disk Tuner PUA

Instant automatic Mac malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of Mac malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner for Mac By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

Quick menu:

Video showing how to remove adware and browser hijackers from a Mac computer:

Potentially unwanted applications removal:

Remove potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX", "NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove disk tuner potentially unwanted application related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

Disk Tuner potentially unwanted application removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove disk tuner potentially unwanted application related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove disk tuner potentially unwanted application related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove disk tuner potentially unwanted application related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
Disk Tuner potentially unwanted application QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Disk Tuner potentially unwanted application on your mobile device.
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