Avast Ultimate Security Suite

Essential Protection for Your PC

★★★★★
4.7/5 (8,254 reviews)

Avast Ultimate Security provides essential security for your Windows PC, protecting against viruses, malware, and spyware without slowing down your computer.

Avast Free Antivirus interface showing dashboard with security status

About Avast Ultimate Security

Avast Ultimate Security is one of the most popular antivirus solutions in the world, trusted by millions of users. It offers comprehensive protection against various online threats, including viruses, malware, spyware, and ransomware.


With its intelligent threat detection system, Avast Ultimate Security can identify and block threats in real-time, keeping your PC safe while you browse, shop, bank, or work online. The software runs silently in the background, using minimal system resources to ensure your computer maintains optimal performance.


Despite being free, Avast Ultimate Free Antivirus includes many features typically found only in premium security solutions, making it an excellent choice for home users looking for reliable protection without the cost.

Key Features

Intelligent Antivirus

Detects and blocks viruses, malware, spyware, ransomware, and phishing attacks in real-time using advanced machine learning technology.

CyberCapture

Automatically sends suspicious files to the Avast Threat Lab for analysis and creates a cure if needed to protect all Avast users.

Smart Scan

Scans for security threats, software updates, network issues, and performance problems in one click.

Wi-Fi Inspector

Scans your network for vulnerabilities and identifies potential security issues with your router.

Behavior Shield

Monitors all programs on your PC in real-time for suspicious behavior to protect against zero-second threats.

Game Mode

Automatically detects when you're gaming and optimizes your system for the best gaming experience without interruptions.

Screenshots

Avast Free Antivirus dashboard showing security status
Avast Free Antivirus scan in progress
Avast Free Antivirus scan in progress

System Requirements

Operating System

Windows 11, Windows 10, Windows 8/8.1, Windows 7 SP1 or higher

Memory

256 MB RAM or above

Disk Space

2 GB of free hard disk space

Processor

Intel Pentium 4 / AMD Athlon 64 processor or above (must support SSE2 instructions)

Download Avast Ultimate Security For Free

Choose the version that's right for your operating system:

Windows

For Windows 7, 8, 10, 11

Download for Windows

Mac

For macOS 10.13 and higher

Download for Mac

Android

For Android 6.0 and higher

Download for Android

iOS

For iOS 13.0 and higher

Download for iOS

How to install

Get protected right away by following these 3 easy steps:

Step 1

1. Download

Click here to download.

Step 2

2. Open the file

Open the downloaded file and approve the installation.

Step 3

3. Install the file

Run the installer and follow the simple instructions.

Frequently Asked Questions

Is Avast Ultimate Security really free?

Yes, Avast Ultimate Security is completely free for personal, non-commercial use. It provides essential protection features without requiring payment or subscription.

What's the difference between Avast Free Antivirus and Avast Premium Security?

Avast Free Antivirus provides essential protection against viruses and malware, while Avast Premium Security includes additional features like ransomware protection, secure browsing, webcam protection, and a firewall. Premium also offers protection for multiple devices and removes ads from the interface.

Will Avast Free Antivirus slow down my computer?

Avast Free Antivirus is designed to use minimal system resources. It includes performance optimization features and runs most scans when your computer is idle to minimize impact on your system's performance.

How often is Avast Free Antivirus updated?

Avast Free Antivirus receives regular virus definition updates, typically multiple times per day. Software updates with new features and improvements are released periodically throughout the year.

Can I use Avast Free Antivirus with other security software?

It's generally not recommended to run multiple antivirus programs simultaneously as they can conflict with each other. However, Avast Free Antivirus can work alongside certain specialized security tools that don't provide the same core functionality.