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What is OpticalUpdater.system? How to remove it from Mac?

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  • 6 min read

Photo: Yasin Hasan /

Adware like OpticalUpdater often plagues Macs, and users have little or no knowledge of how to deal with these issues. Some Mac users are under the impression that the Apple ecosystem is quite safe from malware and other malicious tools; hence, they do not take action to strengthen the device’s security.

However, adware like the one mentioned above can easily infect your Apple device if you have not followed the global cybersecurity best practices.

In this article, we will explain what OpticalUpdater.system adware is and how you can remove it from your Mac device.

What is OpticalUpdater.system?

As explained earlier, the OpticalUpdater.system is an adware. An adware is a malicious program that displays unwanted ads on your browsers. While some ads may be tolerable, a horde of such ads is bound to generate irritation and frustration among users.

This tool also acts as a browser hijacker, a malicious tool to take control of your browser and change the default search engine or do additional damage including infiltrating and pilfering user data, directing users to malicious websites, recording web usage and keystrokes, and changing registries.

Thus, you need to know how this Potentially Unwanted Application (PUA) gets installed on the device. Here’s how OpticalUpdater.system gets inside your Mac:

  • Malicious software updates: This is probably one of the most widely used methods threat actors use to lure unsuspecting users to download malicious apps. For instance, there are thousands of websites where you can download cracked software for free. Even several YouTube channels are also complicit in this. So, if you have a habit of visiting suspicious websites, there is a chance that your device has adware installed on your Mac.
  • Bundling: This is the second most used technique, where hackers bundle malicious and legitimate open-source software. Or, they market these software as necessary add-ons to legitimate software, and the users download them without giving them a second thought.
  • Aggressive marketing campaign: Sometimes, threat actors deploy aggressive marketing campaigns to promote certain malicious software. This can involve regular advertisements targeting certain regions or age groups. With regular ads, users think the app is fine and will download it on their devices.
  • Download pages: This is an extension of the above three methods. When the hackers have successfully established the malicious app, they will create an ‘official’ download page where the users can download that app.

Also read: Is Ticketliquidator safe? Can you get scammed?

How to remove OpticalUpdater.system from Mac?

Now that we have understood what is OpticalUpdater.system adware let us learn how to remove it from your Mac:

Stop the suspicious process

Sometimes, certain apps on a Mac run one or several processes, which consumes a lot of memory and causes important processes to not run as expected.

Therefore, you should remove these suspicious processes:

Step 1: Head to Finder > Applications. After that, click on Utilities.

Step 2: In Utilities, double-click on Activity Monitor to launch the app.

Step 3: Now, head to the Memory tab on the top and then stop the suspicious process. To stop the process, click the Cross icon at the top and then select Force Quit.

Remove the suspicious app from your device

While stopping the process is good, you should remove the suspicious app from your Mac.

To remove the app, head to Finder and then click on Applications to see all the apps installed on Mac. Right-click on the app and then select Move to Bin.

Remove the malicious extension from your browser

These browser-hijacking tools also download and install malicious extensions on your browser. These extensions constantly monitor your browsing habits and can also send the data to the command-and-control (C2) server.

Remove OpticalUpdater.system from Safari

To remove OpticalUpdater.system from Safari, follow the steps below:

Step 1: Open Safari and head to the Safari icon at the top left of the screen. After that, click on Settings.

Step 2: Now, click on Extensions and Uninstall to remove the extension.

Remove OpticalUpdater.system from Chrome

Let us understand how to remove the OpticalUpdater.system from Chrome:

Step 1: Open Chrome and click the three-dot button at the top right of the screen. After that, head to Extension > Manage Extensions.

Step 2: Click on the Remove button below the extension that you want to delete.


Firefox is also one of the most widely used browsers. Here’s how to remove OpticalUpdater.system from Firefox:

Step 1: Click on the hamburger menu at the top right corner of the screen. After that, select the Addons and themes option.

Step 2: Now, select the triple horizontal dots icon and then select Remove.

Scan the device

Finally, install third-party antivirus like Malwarebytes, Norton, or McAfee, and scan your device. These antivirus are reputed and can easily detect adware like OpticalUpdater.system.

Also read: How to report a scam on Craigslist?

How to protect yourself from malware?

Let us learn how you can protect yourself from the malware:

  • Do not download software from third-party websites. Only go for the official websites and app stores.
  • Always scan your device and keep the antivirus updated.
  • Keep your device’s operating system updated at all times.
  • Do not click on a random link on the internet.

In conclusion, OpticalUpdater.system is adware that can be installed on your Mac via several methods. Follow the steps mentioned above to easily remove it from the device.

Also read: What is ProType? How to remove it from Mac?

Kumar Hemant

Kumar Hemant

Deputy Editor at Candid.Technology. Hemant writes at the intersection of tech and culture and has a keen interest in science, social issues and international relations. You can contact him here: