How to uninstall Mac Mechanic “Virus” (March 2019 Update)


Mac Mechanic

According to most reports from cyber security specialists, Mac Mechanic is actually a potentially unwanted program (PUP for short). What this means is that if you have Mac Mechanic on your machine, then you are most likely to experience certain rather unpleasant activities on your computer due to the presence of the unwanted program on it.

It’s well known that Mac computers rarely, if ever, need any type of optimization software to boost their performance. Nevertheless, there are quite a lot of software applications and programs out there that claim to be able to improve the performance and productivity of Mac machines. One such program called Mac Mechanic will be the main focus of this article. PUPs are typically not seen as dangerous or as harmful – they are not viruses like Ransomware, Spyware or Trojans. However, they can be particularly unpleasant and irritating and also, in most of the cases, they wouldn’t really provide you with any actual functionality that would make it worth keeping them on your computer. Although it is claimed that an optimization tool like Mac Mechanic would be able to make your machine run faster or smoother, it is safe to assume that none of this would actually happen in reality, if you have this program on your computer. Below, we will give you a more detailed explanation as to why Mac Mechanic is regarded as a PUP, what it is likely to do once inside your Mac computer and what are the most likely ways it has gotten there in the first place. Also, if you do have this PUP on your machine, the removal guide below will help you eliminate it with easy. Just follow the instructions carefully and you should be able to take care of this issue in no time. In case you need additional assistance, you can try the recommended removal program from this page and you can also contact us through the comments section if you want to ask us any questions with regards to this unpleasant PUP.

Why is it unwanted? What can it really do?

The two main purposes of most potentially unwanted programs/applications like this are to persuade the user into buying the full version of the software and to generate money through web advertising.

In most cases, the user would initially only get the free version of the PUP. The free versions of most such programs usually can’t do anything aside from “scan” your machine for errors and redundant data and software that might need to get cleaned. However, the results from the scan usually tend to be exaggerated or outright fake, showing you that there are a lot of problems with your Mac that need to be fixed. Naturally, you are offered to buy the full version of the optimizer which would supposedly clean your computer and thus make it operate faster or smoother. However, since the results are likely fake, there’s probably nothing wring with your Mac, meaning that if you buy the license for the full version of Mac Mechanic, you’d probably simply be wasting your money for software that won’t really help you in any way.

Another unpleasant thing about such optimization tools is that they oftentimes tend to stream unpleasant and irritating ads and page redirects on the user’s screen. It’s even possible that such an app might even try to alter some of your browser’s elements like its search engine and its homepage and make them contribute to its aggressive advertising campaigns. Not only that, but your browsing history and online activities might get monitored by the PUP for the purposes of gathering telemetry data and later using that for targeted advertising. All in all, there are quite a lot of things to be disliked about such programs and more than enough reasons to have them removed from your system.

How could you land Mac Mechanic on your Mac?

Most undesirable programs like this one tend to come from file bundles where they have been added to the installer of some other piece of software. You could, however, avoid this in a rather easy way. Simply take a look at the installation settings from the setup menu before you install a new program on your Mac and see if there aren’t any added components that you might not want on your computer. Naturally, everything that you see that has been bundled as a bonus element which doesn’t seem to be trustworthy or desirable should be disabled before the installation continues so remember that and always make sure to do it from now on.


Name Mac Mechanic
Type PUP
Danger Level Low
Symptoms Frequent prompts that try to persuade you into buying the full version of the program as well as random ads and potential browser changes.
Distribution Method Usually such apps get distributed via software bundles and also through their official sites.
Detection Tool

Mac Mechanic “Virus” Removal

How to uninstall Mac Mechanic “Virus” (March 2019 Update)

The first thing you need to do is to Quit Safari (if it is opened). If you have trouble closing it normally, you may need to Force Quit Safari:

You can choose the Apple menu and click on Force Quit.

Alternatively you can simultaneously press (the Command key situated next to the space bar), Option (the key right next to it) and Escape (the key located at the upper left corner of your keyboard).

If you have done it right a dialog box titled Force Quit Applications will open up.

In this new dialog window select Safari, then press the Force Quit button, then confirm with Force Quit again.

Close the dialog box/window.

How to uninstall Mac Mechanic “Virus” (March 2019 Update)


Start Activity Monitor by opening up Finder, then proceed to How to uninstall Mac Mechanic “Virus” (March 2019 Update)

Once there, look at all the processes: if you believe any of them are hijacking your results, or are part of the problem, highlight the process with your mouse, then click the “i” button at the top. This will open up the following box:

How to uninstall Mac Mechanic “Virus” (March 2019 Update)

Now click on Sample at the bottom:

How to uninstall Mac Mechanic “Virus” (March 2019 Update)

Do this for all processes you believe are part of the threat, and run any suspicious files in our online virus scanner, then delete the malicious files:

Each file will be scanned with up to 64 antivirus programs to ensure maximum accuracy
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This file is not matched with any known malware in the database. You can either do a full real-time scan of the file or skip it to upload a new file. Doing a full scan with 64 antivirus programs can take up to 3-4 minutes per file.
How to uninstall Mac Mechanic “Virus” (March 2019 Update)
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How to uninstall Mac Mechanic “Virus” (March 2019 Update)
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    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    The next step is to safely launch Safari again. Press and hold the Shift key while relaunching Safari. This will prevent Safari’s previously opened pages from loading again. Once Safari is opened up, you can release the Shift key.

    On the off chance that you are still having trouble with scripts interrupting the closing of unwanted pages in Safari, you may need to take some additional measures.

    First, Force Quit Safari again.

    Now if you are using a Wi-Fi connection turn it off by selecting Wi-Fi off in you Mac’s Menu. If you are using a cable internet (Ethernet connection), disconnect the Ethernet cable.

    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    Re-Launch Safari but don’t forget to press and hold the Shift button while doing it, so no previous pages can be opened up. Now, Click on Preferences in the Safari menu,

    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    and then again on the Extensions tab,

    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    Select and Uninstall any extensions that you don’t recognize by clicking on the Uninstall button. If you are not sure and don’t want to take any risks you can safely uninstall all extensions, none are required for normal system operation.
    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    The threat has likely infected all of your browsers. The instructions below need to be applied for all browsers you are using.

    Again select Preferences in the Safari Menu, but this time click on the Privacy tab,
    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    Now click on Remove All Website Data, confirm with Remove Now. Keep in mind that after you do this all stored website data will be deleted. You will need to sign-in again for all websites that require any form of authentication.

    Still in the Preferences menu, hit the General tab

    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    Check if your Homepage is the one you have selected, if not change it to whatever you prefer.
    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    Select the History menu this time, and click on Clear History. This way you will prevent accidentally opening a problematic web page again.

    How to uninstall Mac Mechanic “Virus” (March 2019 Update) How to Remove Mac Mechanic From Firefox in OSX:

    Open Firefoxclick on How to uninstall Mac Mechanic “Virus” (March 2019 Update) (top right) ——-> Add-onsHit Extensions next.

    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

    The problem should be lurking somewhere around here –  Remove it. Then Refresh Your Firefox Settings.

    How to uninstall Mac Mechanic “Virus” (March 2019 Update)How to Remove Mac Mechanic From Chrome in OSX:

     Start Chrome, click How to uninstall Mac Mechanic “Virus” (March 2019 Update) —–>More Tools —–> Extensions. There,  find the malware and  select  How to uninstall Mac Mechanic “Virus” (March 2019 Update).

    How to uninstall Mac Mechanic “Virus” (March 2019 Update)

     Click How to uninstall Mac Mechanic “Virus” (March 2019 Update) again, and proceed to Settings —> Search, the fourth tab, select Manage Search Engines.  Delete everything but the search engines you normally use. After that Reset Your Chrome Settings.

    If the guide doesn’t help, download the anti-virus program we recommended or try our free online virus scanner. Also, you can always ask us in the comments for help!


    About the author


    Brandon Skies

    Brandon is a researcher and content creator in the fields of cyber-security and virtual privacy. Years of experience enable him to provide readers with important information and adequate solutions for the latest software and malware problems.

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