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Windows Security: Defender, Antivirus & More for Windows 11 | Microsoft.Antivirus software for windows free download

 

Avast Free Antivirus software detects, blocks, and removes all types of malware: viruses, adware, spyware, Trojans, and more. Avast Free Antivirus software keeps your PC safe in real time without slowing it down.

Looking for a performance boost? At the same time, it scans your PC to remove viruses and other malware automatically before they can do real damage. We have one of the best antivirus software solutions available, because we have the right antivirus protection for all your needs.

Webcam hacking and extortion is real. Find out if your webcam has been hacked, how to protect yourself and avoid living your own 'Black Mirror' nightmare. Spam text messages are the ultimate nuisance. Concerned about smart TV cameras and tracking? Find out if your Smart TV is spying on you and how to disable built-in cameras and voice-recording features. Scareware is designed to trick users into downloading malicious software. Here's how to identify fake virus warning popups and how to remove scareware.

Mac users often feel protected by the security features in macOS, but Macs can get viruses. Find out why Mac viruses can still be a threat. Want to learn about malware?

Read this ultimate guide to find out what malware is, how it works, how it spreads and what you should do to protect yourself. Amazon scams are common, from Prime scams to phone scams. Learn how to spot them here. Learn more about some of our specialized privacy solutions, below.

In order to view this page correctly, you must have a JavaScript-enabled browser and have JavaScript turned on. We apologize for any inconvenience. Learn how to enable it. Download Free Antivirus Software Get award-winning free antivirus that offers world-class protection against viruses and other malware, secures your Wi-Fi network, and strengthens your privacy. Over million users worldwide trust Avast to protect them.

Advanced virus and malware protection. Home Wi-Fi network security. Easy to install, effortless to use. Smart Scan Scans your device for hard-to-find vulnerabilities in hidden places. CyberCapture Automatically sends suspicious files for analysis in the Cloud, then pushes a cure to Avast users if needed. Behavior Shield Alerts you immediately if any of your apps start behaving suspiciously. File Shield Alerts you to any suspicious files — before you open them.

Quarantine Stores potentially harmful files and completely isolates them from the rest of your operating system. It also includes these privacy and security features: Wi-Fi network security. Connect safely and with confidence, even on unsecured or public Wi-Fi networks.

Block hackers and intruders from piggybacking on your network and stop them from accessing your sensitive, personal files. Network Inspector Connect safely and with confidence, even on unsecured or public Wi-Fi networks. Firewall Our intelligent firewall monitors all network traffic between your PC and the outside world and blocks malicious intrusions. Safe browsing and emailing.

Stay safe when browsing, emailing, or working online. Generally, a download manager enables downloading of large files or multiples files in one session. Many web browsers, such as Internet Explorer 9, include a download manager. Stand-alone download managers also are available, including the Microsoft Download Manager. The Microsoft Download Manager solves these potential problems.

It gives you the ability to download multiple files at one time and download large files quickly and reliably. It also allows you to suspend active downloads and resume downloads that have failed. Microsoft Download Manager is free and available for download now. Warning: This site requires the use of scripts, which your browser does not currently allow. See how to enable scripts. Microsoft Security Essentials.

Select Language:. Choose the download you want. Download Summary:. Secure sign-in with Windows Hello Forget your passwords. Edge online privacy Tracking prevention helps you manage how websites track you and gives you control over your privacy settings.

Set it and forget it Windows PCs can automatically backup precious files to the cloud in OneDrive—allowing for selected files to be made recoverable in the event of a cyberattack. Empower and protect Stay connected with your loved ones, develop stronger safety habits, and create a safer online space with the Microsoft Family Safety app. Learn more. Say goodbye to passwords with Windows Hello Windows Hello allows for more secure and personal sign-ins with biometrics, like your face or fingerprint.

Facial recognition Face scans are faster and more convenient. Fingerprint Fingerprint ID data is encrypted. Microsoft Edge helps keep your data yours Tracking Prevention gives you more control over how websites track your data. Your digital life—secured OneDrive keeps your files backed up and protected with ransomware detection and file recovery options.

Microsoft Family Safety The Family Safety app helps you to stay connected with your loved ones, develop stronger safety habits, and create a safer online space.