Download and installation

1. Delete Avast Antivirus
2. How To Remove Avast Completely

What are the system requirements for Avast Security?

The system requirements for Avast Security and Avast Premium Security are:

• Apple macOS 10.14.x (Mojave), Apple macOS 10.13.x (High Sierra), Apple macOS 10.12.x (Sierra), Apple Mac OS X 10.11.x (El Capitan), Apple Mac OS X 10.10.x (Yosemite).
• Intel based Mac computer with 64-bit processor.
• 512 MB RAM or above (1 GB RAM or higher preferred).
• 256 MB minimum hard disk free space.
• Internet connection (to download and register the product, for automatic updates of the program and virus database).
• Optimally standard screen resolution not less than 1024 x 768 pixels.

1. The program may ask to restart your Mac to complete installation. Some Avast components do not function properly until the computer restarts. If you are not satisfied with the program, you can uninstall Avast from your computer. Learn more about how Avast Mac Security protects your computer.
2. I have both Avast Mac Security and AVG antivirus installed. I have both Avast Mac Security and AVG antivirus installed. That is Incompatible and a popup tells me that I should uninstall Avast Mac security.
3. The reason you need to follow a professional guide to uninstall Avast Security from your Mac is that you cannot do this by simply dragging it to Trash. Before starting, you need Avast Security for Mac setup file ( click to download ) to have a clean uninstall.
4. All you need to do is in Finder, open the applications tab and drag and drop any files relating to Avast into the Trash. Although the Mac does not need any anti virus its good to keep an eye out for any Adware etc.

How do I download and install Avast Security?

To download and install Avast Security or Avast Premium Security:

1. Click the link below to download the Avast Security setup file:
2. Double-click the downloaded file avast_security_online.dmg.
3. In the dialog that appears, double-click the Avast Security icon and follow the on-screen instructions.
4. When installation is complete, click Close.

To uninstall Avast Free Mac Security, follow these steps: Open the Avast user interface. Select Avast from the menu and Uninstall Avast. Confirm by clicking Uninstall. Enter the administrator name and password for your Mac, if asked, and click OK. Note: The program cannot uninstall Online Security Extensions when web browsers are open. All browsers must be closed to uninstall Avast. Navigate the Avast Security in the Menu bar on the top-left of the screen and choose Uninstall Avast. Then, click the Uninstall button. On the following window, select additional security products you want to uninstall and click Continue. How to uninstall, remove and delete Avast antivirus 2016 from Windows 10, 8, 7 and XP, or Mac. Steps for Free Antivirus, Internet Security, and Premier. Download Avast 2018 activation code for free FREE DOWNLOAD →.

For detailed installation instructions, refer to the following article:

If you have purchased Avast Premium Security, activate your subscription by going to ☰ Menu ▸ Activate paid features and entering your activation code.

Do I need a subscription to use Avast Security?

No, a subscription is not necessary for the free version of Avast Security. After installation, Avast Security is ready to use. You can connect Avast Security to your Avast Account to benefit from the device management feature.

For additional features, upgrade to a paid subscription of Avast Premium Security. You must activate this product with a valid activation code.

How do I upgrade from Avast Security to Avast Premium Security?

To upgrade to Avast Premium Security:

1. In your Applications folder, double-click the Avast icon to open the application.
2. Click Upgrade on the main Avast Security screen.
3. Follow the on-screen purchase instructions.

After purchase, Avast Premium Security automatically activates. If necessary, you can manually activate the product by going to ☰ Menu ▸ Activate paid features and entering your activation code.

How do I activate Avast Premium Security?

To manually activate Avast Premium Security:

1. Open the order confirmation email you received after purchasing Avast Premium Security.
2. Locate and copy the activation code from the confirmation email.
3. In your Applications folder, double-click the Avast icon to open the application.
4. Go to ☰ Menu ▸ Activate paid features.
5. Type or paste your activation code into the text box, then click Activate.

To view the duration of your subscription, go to ☰ Menu ▸ My subscriptions. For detailed activation instructions, refer to the following article:

How do I connect Avast Security to my Avast Account?

After you download and install Avast Security, you can connect the product to your Avast Account to benefit from the device management feature.

To connect Avast Security to your Avast Account:

1. In your Applications folder, double-click the Avast icon to open the application.
2. Go to ☰ Menu ▸ Log in to Avast account.
3. Enter your Avast Account credentials, then click Log In.

For detailed instructions, refer to the following article:

What is the difference between Avast Security and Avast Premium Security?

Avast Security is a free product that does not require a paid subscription to use.

Avast Premium Security includes additional features and requires a paid subscription. The additional features include Ransomware Shield and Wi-Fi Inspector.

Features

What is File Shield?

File Shield is the main layer of active protection in Avast Security. It scans programs and files saved on your Mac for malicious threats in real-time before allowing them to be opened, run, modified, or saved. If malware is detected, File Shield prevents the program or file from infecting your Mac.

What is Web Shield?

Web Shield is an additional layer of active protection in Avast Security. It scans data that is transferred when you browse the internet in real-time to prevent malware, such as malicious scripts, from being downloaded and run on your Mac.

What is Email Shield?

Email Shield is an additional layer of active protection in Avast Security. It scans your incoming and outgoing email messages in real-time for malicious content such as viruses. Scanning applies only to messages sent or received using a mail management software (email clients, such as Mail, Microsoft Outlook or Mozilla Thunderbird). If you access your web based email account via an internet browser, your Mac is protected by other Avast Security shields.

What is Ransomware Shield?

Delete Avast Antivirus

Ransomware Shield, available in Avast Premium Security, secures your personal photos, documents, and files from being modified, deleted, or encrypted by ransomware attacks. This feature automatically secures your Pictures and Documents folders and allows you to specify which other folders you want to protect from untrusted applications. Additionally, you can specify which applications are allowed to modify the files in your protected folders.

What is Wi-Fi Inspector?

Wi-Fi Inspector, available in Avast Premium Security, is an active protection component which continuously monitors your network and connected devices for threats.

What is the Virus Chest?

The Virus Chest is a safe place for storing potentially harmful files, completely isolated from the rest of the operating system. Files inside the Virus Chest are not accessible to any outside process, software application, or virus.

For more information about the Virus Chest including how to send files to the Avast Threat Labs, refer to the following article:

How do I run a scan?

To run an Avast Security scan:

1. In your Applications folder, double-click the Avast icon to open the application.
2. Click … (three dots) next to Run Mac Scan.
3. Click Run Mac Scan or Scan Now on the tile of the scan you want to run.

You can run a quick scan of the most vulnerable areas of your Mac, or a thorough scan of the whole system, or quickly scan a particular folder or removable drive, or create and schedule your own scans.

For more information about each type of scan as well as scan settings, refer to the following article:

General settings

How do I check which version of Avast Security is installed?

To check which version of Avast Security is installed on your Mac, go to ☰ Menu ▸ Settings and select the General tab. The version number is displayed at the top of the screen.

How do I exclude files or websites from scanning by the Core Shields?

To set an exclusion for a Core Shield:

1. In your Applications folder, double-click the Avast icon to open the application.
2. Go to ☰ Menu ▸ Settings and select the Core Shields tab.
3. Click Add Exceptions under the shield you want to set an exclusion for.
4. If you are adding an exclusion for File Shield, select the file and click Open. For Web Shield and Email Shield, specify the server and service, then click Add.

For detailed instructions on how to set exclusions for Core Shields, refer to the following article:

How do I exclude files or folders from the pre-defined scans?

To set an exclusion for one of the pre-defined scans:

1. In your Applications folder, double-click the Avast icon to open the application.
2. Go to ☰ Menu ▸ Settings and select the Scans tab.
3. Click Add Exceptions under the scan you want to set an exclusion for.
4. Select a file or folder, then click Open.

For detailed instructions on how to set exclusions for the pre-defined scans, refer to the following article:

Troubleshooting

What does the status message 'Unable to scan' mean in scan results?

The status message 'Unable to scan' means that the file could not be scanned, possibly due to an encrypted ZIP archive or because the files are currently in use. The status does not mean that there is anything wrong with the file, only that it is not available for scanning.

What does the status message 'You are in passive mode' mean?

If you see the status You are in passive mode, you need to manually allow Avast Software extensions on your Mac. For detailed instructions, refer to the following article:

What should I do if I'm unable to browse the web or use other software on my Mac?

Avast Security shields detect and block suspicious files, dangerous websites, and unauthorized connections. In some cases, a Core Shield may cause connectivity issues. If you are unable to use online software or browse certain sites, use the troubleshooting steps below to determine if a shield is causing the issue:

1. In your Applications folder, double-click the Avast icon to open the application.
2. Click Core Shields.
3. Click the ON (green) slider above File Shield and perform your original action (for example, if you were unable to access a certain site, try to access the site again).
4. If the connectivity issue persists, click the OFF (red) slider to turn the shield on again, then repeat the above steps for each shield.

When you determine which shield is causing the connectivity issue, you can set an exclusion for a certain file, site, or mail server by using the steps in the following article:

How do I uninstall Avast Security?

Avast Security cannot be fully uninstalled by dragging the application to the Trash. To uninstall Avast Security:

1. In your Applications folder, double-click the Avast icon to open the application.
2. Click Avast in the menu bar, then select Uninstall Avast Security from the context menu.
3. Click Uninstall.

For detailed uninstallation instructions, refer to the following article:

• Avast Security 14.x for Mac
• Avast Premium Security 14.x for Mac

• Apple macOS 10.14.x (Mojave)
• Apple macOS 10.13.x (High Sierra)
• Apple macOS 10.12.x (Sierra)
• Apple Mac OS X 10.11.x (El Capitan)
• Apple Mac OS X 10.10.x (Yosemite)

• Pros

  Certified by one independent testing lab. Speedy full scan. Excellent phishing protection for Chrome and Firefox. Network security scanner. Password manager. Website rating. Active Do Not Track. Free.

• Cons

  Poor phishing protection in Safari. Password manager includes only basic features.

• Bottom Line

  Avast Security (for Mac) delivers effective malware protection along with unusual bonus features. Phishing protection only works well in Chrome and Firefox, but this free utility is still worth a look.

For years, Mac users basked in the mystique of virus-free computing. It wasn't true, alas, and as time goes on we see more and more Mac-specific malware attacks. The situation may not be nearly as bad as for Window or Android, but prudence still dictates that you install antivirus protection on your Macs as well. Avast Security offers Macs protection against malware along with advanced features including a password manager and a network security scanner, all for a cost of exactly nothing.

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Installation went quickly, though I did find I had to separately activate the password manager and the Online Security browser extension from the Tools page. You'll also find Avast's SecureLine VPN on that page, but it's not free like the others. When you click to activate, you get a choice of signing up for $2.99 per month or starting a 30-day trial.

The product's spacious main window features a large status indicator centered in an otherwise-empty white region, with a menu down the left side. It's a very different appearance from Avast Free Antivirus on Windows, which uses pops of purple and green on a dark gray background.

Pricing and OS Support

Like Bitdefender and Kaspersky, Avast supports macOS versions back to 10.9 Mavericks. If you have an antique Mac that for some reason can't even run Mavericks, consider ESET Cyber Security (for Mac), ProtectWorks, or ClamXAV (for Mac) all of which support versions from 10.6 (Snow Leopard) on. At the other end of the spectrum, Avira, Trend Micro, and Symantec require macOS 10.11 (El Capitan) or better.

Like Sophos and Avira, Avast offers full antivirus protection for free. Avast Security Pro (for Mac) costs $59.99 per year for one license or $69.99 for three. The Pro edition adds ransomware protection and real-time notification when new devices connect to your network. The free edition is strictly for non-commercial use; in a business setting, you must pay up.

Good Malware Protection Scores

When reviewing a Windows antivirus utility, I report how it scored with four independent antivirus testing labs. The very best products earn top scores from all four labs. But even if no test results exist, I can run my own hands-on tests using real-world malware and malware-hosting URLs.

It took years to develop my hands-on tools and tests for Windows. Most of them don't carry over to the macOS platform. Hence lab results become extremely important for my Mac antivirus reviews. Two of the labs I follow, AV-Test Institute and AV-Comparatives, test Mac antivirus, and Avast participates with one of them.

Experts at AV-Comparatives test Mac antivirus products using the latest macOS malware. They also evaluate each product's ability to detect Windows malware. Why? While a Trojan written for Windows wouldn't run on a Mac, the Mac could serve as a carrier.

Avast managed 99.9 percent protection against Mac malware. That's very good—better than most. However, Bitdefender and Kaspersky exhibited 100 percent protection. In the Windows malware test, Avast detected 100 percent of the samples. Most competing products also took 100 percent. However, Webroot only caught 75 percent, and Intego Mac Internet Security X9 got just 18 percent. Like most tested products, Avast received certification from AV-Comparatives for Mac antivirus protection.

Having one certification is good; having two is better. Bitdefender, Kaspersky, and Sophos are among the products that received certifications from both labs for Mac malware protection.

Scan Choices

Avast offers several scans to improve your Mac's security. A full scan on the Apple MacBook Air 13-Inch that I use for testing took 14.5 minutes, just a hair over Intego's 14 minutes, and quicker than the 18 minutes required by Avira. The average for recent products is 24 minutes, so Avast proved quite speedy. Norton is the current speed champ, completing a full scan in 10 minutes.

There's a separate scan for removable volumes, though you can configure the full scan to include them. I scanned a thumb drive containing my Windows malware collection and found that it quarantined 85 percent of them. For comparison, Avira detected 82 percent of these, while Sophos Home (for Mac) wiped out every single one.

There's no predefined quick scan, which makes sense given the speed of the full scan. The custom scan settings confused me, though. As with the full scan, you can add file locations to exclude from scanning, and configure it to scan Time Machine backups. But the full scan's settings include those options, and also let you include removable volumes and network volumes, while the custom scan's settings do not. Puzzling.

You can schedule a daily, weekly, or monthly scan if desired. Settings for a scheduled scan include two additional choices. You can set it to skip scanning if your device is running on batteries, and you can have it wake from sleep if necessary, to perform its scheduled scan. Avira Free Antivirus for Mac not only offers scheduled scanning, it defaults to a weekly scan with no effort on your part. Sophos skips scheduled scanning, relying instead on real-time protection.

Network Security Scan

The final scan choice doesn't look for malware. Rather, it collects information about all the devices on your network and flags any security problems. On my own network, the scan finished in just under three minutes.

The scanner correctly reported that my main router has an open port that could theoretically become a point of attack. It's true that the port is open, as my ISP uses it to run remote diagnostics when necessary. But that function requires a key that only the ISP has.

More interestingly, it found serious problems with a network storage device (fortunately, one that I'm not currently using). Not only does this device have numerous open ports, it's vulnerable to a buffer overrun attack. Avast advised updating the firmware; I just unplugged it.

The report also serves as a list of everything that's connected to your network, identifying each by name and type. It's similar to the output of Bitdefender Home Scanner. With both products, I found devices with names like unknown6542990b6483—not much help! Bitdefender includes an option to edit the name and type, and it remembers your edits in subsequent scans. I'd like to see that ability in Avast.

Excellent Phishing Protection in Chrome and Firefox

In the Windows realm, one thing that differentiates Avast's premium product is better protection against phishing sites, those fraudulent sites that imitate secure sites and try to steal your login credentials. The free Windows edition scored very poorly, while the premium edition did an extremely good job. Based on initial round of testing, the Mac product's phishing protection, both free and Pro, seemed to match that of the free Windows product, meaning it's not very good.

I learned later that Avast's phishing protection is not fully functional in Safari. The developers are working on making it completely browser-independent. In the meantime, they advise using Chrome or Firefox. Norton was also having problems during my original test, so I tossed those results and started fresh.

My phishing protection test uses URLs reported as fraudulent, but not yet verified. Typically, these are only a few hours old. That's important, because phishing sites are ephemeral. Once they've been identified and blacklisted, the fraudsters just create new ones.

I simultaneously launch each URL in Safari on the Mac and in a browser protected by long-time antiphishing champ Symantec Norton Security Premium. I also launch each in Chrome, Firefox, and Internet Explorer, relying on the browser's built-in protection. If any of the five browsers throw an error message, I discard the URL. A true phishing fraud masquerades as a secure site and tries to capture your login credentials. Any URL that doesn't match that profile also gets junked.

I've written a Windows-based tool that handles launching URLs and capturing results. On the Mac, I copy and paste each URL into Safari and manually record the result. When I have enough data, I dump the five reports into Excel for comparison.

The malefactors that perpetrate these phishing frauds are clever. They're always devising new techniques to get past security software. That being the case, I report results not as hard figures but as the difference between the product under test and the others.

Tested using Safari's incomplete phishing protection, Avast's detection rate lagged Norton's by 32 percent, and Norton itself was having a bad day. All three browsers soundly drubbed Avast. When I retested using Chrome, Avast tied with Norton and beat the detection rates of the three browsers. That's impressive. Of the Mac security products I've tested, only Bitdefender did better, beating Norton by 5 percentage points.

While phishing is browser-agnostic, phishing protection is not. Bitdefender beat Norton by 5 percentage points, but its Windows cousin more than doubled that gap. Even Symantec Norton Security Deluxe (for Mac) didn't detect many frauds that its Windows edition caught.

Site Rating and Do Not Track

Like McAfee AntiVirus Plus (for Mac), Avira, Trend Micro, and several others, Avast marks up results in popular search engines with green for safe, red for dangerous, and gray for unknown. You can click to vote a page up or down. Simple!

Clicking the Online Safety toolbar button displays the status for the current page. It also lists all the elements on the site that can track your online activity, including analytics, social media, ad trackers, and more. By default, it doesn't do anything, but you're free to block any tracker or category. Websites are free to ignore the official Do Not Track header sent by your browser, but Avast's active Do Not Track feature has teeth. Kaspersky Internet Security for Mac offers a similar active Do Not Track feature.

Digging into the settings for Online Safety reveals a hidden gem: SiteCorrect. If you mistype a site name, this feature offers to change to the correct name. You can even set it to automatically make the fix, with no prompt. However, in testing, I couldn't tease it into action. I tried pyapal.com, pcmga.com, whitehous.gov, wallmart.com, and many others, with no reaction from SiteCorrect.

Basic Password Manager

Like Avast's Windows antivirus, this product includes a password manager. Where the Windows product invites you to install on Android, the Mac one suggests adding password management to your iPhone. On Windows, the password manager is integrated with the antivirus; under macOS, it's a separate app.

There's no limit on the number of devices, and you can sync your passwords between them all, macOS, Windows, iOS, and Android. Avast doesn't keep your passwords in the cloud. Rather, it uses your Avast account to authorize syncing data that's stored locally on your devices.

How To Remove Avast Completely

Once you've enabled syncing on a device, that device becomes an authenticator for adding more devices. The new device displays a numeric code, and the existing device gets a notification with the same code. If the numbers match, just click to approve. What if you lose all your devices? On installation, Avast sends an email with a recovery link; don't lose that email!

On each of your devices, you create a master password to protect the local password stash. The master passwords need not be the same, but who'd want the confusion of making them different? Avast offers advice on creating a strong password, with a color-coded line representing the strength of what you've typed. It's not easy to get all the way to green, but Avast doesn't require it. In fact, it accepted 'Password' as a master password.

Avast offers browser extensions for Chrome, Firefox, and Safari. When you log in to a site, the extension offers to save your credentials. If you come back to the site, it fills your saved credentials. Clicking the key icon in one of the fields brings up a menu showing all the credentials you've saved. And it handles two-page logins like what Google uses.

Avast doesn't use the typical menu of logins attached to its toolbar button. Rather, you click the button and launch the main application. Unlike the Windows edition, this is a separate app, not integrated with the main antivirus. Its main window is seriously tall and skinny, like something you'd find on a smartphone, and you have only limited control over its size. Clicking an item opens its details, with a link to open the site itself.

You can also use the password manager to sync and share secure notes between your devices. These are simple, unformatted text snippets, suitable for saving such things as locker combinations and non-digital passwords.

The left-rail menu offers simple icons to manage passwords and secure notes, and one to bring up the password generator. By default, it generates 18-character passwords using all character types. You can set the length anywhere from four to 30 characters using a slider.

Avast analyzes the strength of your master password when you first create it, but not when you update it. Avast Pro Antivirus on Windows can analyze your passwords, flagging any weak or duplicate ones. The free Windows edition used to include this feature, but it was recently enhanced and redefined as a Pro-only feature.

This password manager handles all the basic tasks and no more. Fancy features like secure sharing, two-factor authentication, and password inheritance aren't here. But you do get it along with the antivirus, at no charge, so if it does enough for you, go ahead and use it.

Worth a Look

AV-Comparatives certified Avast Security as an effective Mac antivirus. Impressively, it offers a network scanner and password manager, features often reserved for full security suites. On the other hand, the password manager handles basic functions only—nothing advanced. And while Avast earned great stores in my hands-on antiphishing test, that function currently works well in Chrome and Firefox, but not Safari. But the pros outweigh the cons. If you're looking for free Mac antivirus protection, give it a try, along with Sophos and Avira, and see which you like best.

For truly top-notch Mac security, you'll need to lay out some cash. Our Editors' Choice products in this realm are Bitdefender Antivirus for Mac and Kaspersky Internet Security for Mac. Both received certification from two labs. Both scored well in our hands-on antiphishing test. Bitdefender's AutoPilot mode means you can set it and forget it. And Kaspersky goes above and beyond feature-wise, with full-scale parental control, protection against webcam peeping, a network attack blocker, and more.

Bottom Line: Avast Security (for Mac) delivers effective malware protection along with unusual bonus features. Phishing protection only works well in Chrome and Firefox, but this free utility is still worth a look.

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