Installing Avast Pro Antivirus

Avast Pro Antivirus is an expert security software that prevents viruses, spyware, and other malicious threats from infecting your PC. Additionally, it protects you and your data against dangerous fake websites.

Install Avast Pro Antivirus

  1. Log into Windows as a user with administrator permissions and ensure no other application or antivirus software is running on your PC.
  2. Click the button below to download the Avast Pro Antivirus setup file, and save it in a familiar location on your PC (by default, all files are saved to your Downloads folder). Download Avast Pro Antivirus
  3. Right-click the downloaded setup file avast_pro_antivirus_setup_offline.exe and select Run as administrator from the context menu.
  4. If prompted by the User Account Control dialog for permissions, click Yes (or Continue on older versions of Windows).
  5. To change the default setup language, click the current language at the top-right corner of the screen. Then click Install to proceed with default installation.
  6. To change the default setup language, click the current language at the top-right corner of the Avast Setup screen. Select Customize to proceed with custom installation.
  7. Click Change to manually select your preferred location for saving Avast Pro Antivirus program files, then select or deselect program components to install, and click Install.
  8. Wait while setup installs Avast Pro Antivirus on your PC.
  9. Click Continue on the screen below the message You are protected.
  10. Review the Avast Privacy Policy and click Continue.
  11. If prompted to protect your mobile device, use the relevant options according to your preference, or click the X icon to close the screen.

Avast Pro Antivirus is now installed on your PC and ready to use, but some components may not fully function until you restart your PC. The Avast user interface is accessible via the Avast system tray icon on your Windows taskbar or the Avast Pro Antivirus icon on your desktop.

You need to activate Avast Pro Antivirus using your valid activation code or license file from an order confirmation email, or via your Avast Account registered for the email address you used to make the purchase. For instructions, refer to the following article:

Troubleshooting

If you experience any installation issues:

  1. Ensure your PC meets the minimum system requirements and your Windows is up to date.
  • Windows 10; Windows 8/8.1 except RT and Starter Edition (32 or 64-bit); Windows 7 SP1 or higher, any Edition (32 or 64-bit).
  • Windows fully compatible PC with Intel Pentium 4 / AMD Athlon 64 processor or above (must support SSE2 instructions).
  • 1 GB RAM or above.
  • 2 GB free space on the hard disk.
  • Internet connection to download, activate, and maintain program updates and antivirus database.
  • Optimally standard screen resolution no less than 1024 x 768 pixels.
  1. Check that the downloaded setup file is not corrupted. For instructions, refer to the following article:
  2. Uninstall all your previous antivirus software from your PC. For instructions, refer to the following articles:
  3. Restart your PC, and try again to install Avast Pro Antivirus by following the instructions in this article.

If the issue persists, contact Avast Support and provide your setup log file. For instructions, refer to the following article:

  • Avast Pro Antivirus 18.x
  • 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, 32 / 64-bit

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