Avast Premium Security for WindowsAvast Premium Security for Mac is a comprehensive security application that blocks viruses, spyware, and other malicious threats. Additionally, it protects you and your data against dangerous fake websites, ransomware, and hackers while you are online.
Avast Premium Security is a paid product that requires a subscription to use. This article explains how to install the application and either activate an existing subscription or start a free-trial period.
Avast Premium Security is a paid product that requires a subscription to use. This article explains how to install Avast Security (the free version of the application), then upgrade to Avast Premium Security by activating an existing subscription.
Install Avast Premium Security
- Click the button below to download the Avast Premium Security setup file, and save it to a familiar location on your PC (by default, downloaded files are saved to your Downloads folder).
Download Avast Premium Security for Windows - Right-click the downloaded setup file
avast_premium_security_setup_online.exeand select Run as administrator from the context menu.
If you are unable to authorize installation of Avast Premium Security, refer to the following article for advice:
- If prompted for permission by the User Account Control dialog, click Yes.
- To change the default setup language, click the current language in the top-right corner of the screen and select your preferred language. Next, click Install to proceed with default installation. Optionally, click Customize if you need to make changes to the default setup.
- Wait while setup installs Avast Premium Security on your PC.
- When the installation is complete, click Get started.
- Select one of the options below:
- Activate: If you purchased Avast Premium Security before installation, select this option to start the activation process. For detailed activation instructions, refer to the following article:
- Start free trial: If you do not yet have a paid Avast Premium Security subscription, start a free trial to enjoy access to paid product features for a limited time period.
- Click Run first scan to start a comprehensive Smart Scan, which detects viruses, malware, bad browser add-ons, and other issues on your PC.
Avast Premium Security is now installed, but some components may not fully function until you restart your PC.
- Click the button below to download the Avast Security setup file, and save it to a familiar location on your Mac (by default, downloaded files are saved to your Downloads folder).
Download Avast Security for Mac - Double-click the downloaded setup file
avast_security_online.dmg.
- Double-click the Avast Security icon, then close the window.
- Click Allow.
- Review Avast's Privacy Policy, then click Continue.
- Click Continue to confirm that you have read the End User License Agreement (EULA), then click Agree to confirm that you accept the terms.
- Click Install to proceed with default installation. Optionally, select Change install location... or Customize if you want to make changes to the default setup.
- Enter the password that you use when you start your Mac, then click Install Software. If prompted, enter this password again, and click Update Settings.
- When the System Extension Blocked notification appears, click OK.
- Optionally, untick the box if you do not want Google Chrome installed as your default browser, then click Continue.
- Click Close ▸ Move to Trash .
- Follow the on-screen instructions to allow permissions for Avast Security. For detailed instructions, refer to the following article:
- Activate your Avast Premium Security subscription. For detailed activation instructions, refer to the following article:
Avast Premium Security is now installed on your Mac.
Still need help?
If you experience any installation issues:
- Ensure your PC meets the minimum system requirements and your Windows is up to date.
- Windows 11 except Mixed Reality and IoT Edition; Windows 10 except Mobile and IoT Edition (32 or 64-bit); Windows 8/8.1 except RT and Starter Edition (32 or 64-bit); Windows 7 SP1 with Convenient Rollup Update or higher, any Edition (32 or 64-bit)
- Windows fully compatible PC with Intel Pentium 4 / AMD Athlon 64 processor or above (must support SSE3 instructions); ARM-based devices are not supported
- 1 GB RAM or above
- 2 GB free space on the hard disk
- Internet connection to download, activate, and maintain application updates and the antivirus database
- Optimally standard screen resolution no less than 1024 x 768 pixels
- Check that the downloaded setup file is not corrupted. For instructions, refer to the following article:
- Uninstall any previous antivirus software from your PC. For instructions, refer to the following articles:
- Restart your PC, then try to install Avast Premium Security again by following the exact steps in this article.
If the issue persists, contact Avast Support and provide your setup log file. For instructions, refer to the following article:
If you experience any installation issues:
- Ensure your Mac meets the minimum system requirements.
- Apple macOS 11.x (Big Sur), Apple macOS 10.15.x (Catalina), 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)
- Intel based Mac with 64-bit processor
- 512 MB RAM or above (1 GB RAM or higher preferred)
- 750 MB free space on the hard disk
- Internet connection to download, activate, and maintain application updates and the antivirus database
- Optimally standard screen resolution no less than 1024 x 768 pixels
- Uninstall any previous antivirus software from your Mac. For instructions, refer to the following article:
- Restart your Mac, then try to install Avast Premium Security again by following the exact steps in this article.
If the issue persists, contact Avast Support.
Further recommendations
For more information about Avast Premium Security, refer to the following article:
For more information about Avast Premium Security, refer to the following article:
- Avast Premium Security 21.x for Windows
- Avast Premium Security 14.x for Mac
- Microsoft Windows 11 Home / Pro / Enterprise / Education
- Microsoft Windows 10 Home / Pro / Enterprise / Education - 32 / 64-bit
- Microsoft Windows 8.1 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 8 / Pro / Enterprise - 32 / 64-bit
- Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate - Service Pack 1 with Convenient Rollup Update, 32 / 64-bit
- Apple macOS 11.x (Big Sur)
- Apple macOS 10.15.x (Catalina)
- 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)
