Avast Free Antivirus
Avast Free Antivirus is a free antivirus for Windows, Mac, and mobile. It is made by a Czech company now owned by Gen Digital (the same group behind Norton and AVG). The free version covers real-time scanning, ransomware protection, a firewall, and email scanning. The paid tiers add a sandbox, webcam protection, VPN, and a cleanup tool.
The thing you should know about Avast: in 2020, it came out that their subsidiary Jumpshot was collecting and selling user browsing data to companies like Google, Microsoft, and McKinsey. They shut Jumpshot down after the backlash, and in 2024 the FTC fined them $16.5 million and banned them from selling browsing data. The current version does not do this, but it is worth knowing the history.
What it does
After installation, Avast runs in the background and scans files as you open, download, or run them. The main dashboard has a Smart Scan button that checks for malware, outdated software, weak passwords, and network issues in one pass. For manual scanning, you can run a Quick Scan (common locations), Full System Scan, or a Boot-Time Scan that runs before Windows loads.
Ransomware Shield locks down your Documents and Pictures folders so unauthorized programs cannot encrypt them. The firewall monitors network connections and lets you set rules per application. The Do Not Disturb mode suppresses all notifications during games or presentations.
Advantages
- Free version includes real-time protection, ransomware shield, and firewall
- Consistently scores high in independent AV tests (AV-Comparatives, AV-TEST)
- Smart Scan covers malware, network, and software updates in one click
Drawbacks
- Jumpshot data selling scandal (2020) - FTC fined them $16.5M in 2024
- Free version pushes upgrade popups aggressively
- Heavy on system resources compared to Windows Defender
- AVG uses the same engine and has less baggage; Bitdefender Free is lighter
Who it is for
If you want more protection than Windows Defender offers and do not want to pay for it, Avast Free is a solid option. Just know that you will see upgrade prompts regularly. If the data selling history bothers you, Bitdefender Free or sticking with Windows Defender are cleaner alternatives.
Frequently Asked Questions
Is Avast Free Antivirus safe?
Is Avast free?
Is Avast better than Windows Defender?
Does Avast sell your data?
What is the difference between Avast and AVG?
Features & How-To Guide
| # | Feature | How to use |
|---|---|---|
| 1 | Antivirus scanning | Protection › Scan › Select: Quick / Full / Custom / Boot-time scan. |
| 2 | Real-time protection 16 | Enabled by default. Monitors files when opening, downloading, or running them. settings › protection. |
| 3 | Ransomware protection 11 | protection › Ransomware Shield › Protects selected folders (Documents, Photos) from unauthorized encryption. |
| 4 | Email protection 3 | protection › Core Shields › Email Shield › Scans attachments in incoming and outgoing messages. |
| 5 | Virus definition update 2 | menu › settings › Update › Update virus definitions. Updates automatically by default. |
| 6 | Flash Fill in Excel | protection › firewall › Manage rules for incoming and outgoing application connections. |
| 7 | Threat quarantine 4 | protection › quarantine › Browse and manage detected threats. Restore or delete them. |
| 8 | Wi-Fi network scanning 3 | protection › Wi-Fi Inspector › Scans the network for vulnerabilities and unauthorized devices. |
| 9 | Do Not Disturb mode | settings › Full Screen / Do Not Disturb mode › Silences notifications during games or presentations. |
| 10 | Sandbox (Premium only) | Premium: protection › Sandbox › Run a suspicious application in an isolated environment. |
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