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What are the system requirements for Avast Security?

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

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Enable Beta Channel updates to have the latest antivirus engine updates protect your computer: In the Avast main screen click Account, Updates.; In the Program section check Use beta channel.; Click Update Now and the latest protection downloads to your computer.

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.

Avast Security does not run properly if you have any other antivirus software installed.

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How do I download and install Avast Security?

To download and install Avast Security or Avast Premium Security:

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

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:

In your Applications folder, double-click the Avast icon to open the application.
Click Upgrade on the main Avast Security screen.
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?

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To manually activate Avast Premium Security:

Open the order confirmation email you received after purchasing Avast Premium Security.
Locate and copy the activation code from the confirmation email.
In your Applications folder, double-click the Avast icon to open the application.
Go to ☰ Menu ▸ Activate paid features.
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:

In your Applications folder, double-click the Avast icon to open the application.
Go to ☰ Menu ▸ Log in to Avast account.
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?

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:

In your Applications folder, double-click the Avast icon to open the application.
Click … (three dots) next to Run Mac Scan.
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:

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