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Bookmark or Share- Turn Microsoft Defender Firewall on or offTo turn Microsoft Defender Firewall on or off: Select Start , then open Settings . Under Privacy & security , select Windows Security > Firewall & network protection. Open Windows Security settings. Select a network profile: Domain network, Private network, or Public network.
- Protect my PC from viruses - Microsoft SupportUse an anti-malware app - Installing an anti-malware app and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Microsoft Defender is free anti-malware software included with Windows, and it's kept updated automatically through Windows Update.
- Installing Microsoft Defender - Microsoft SupportProtect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: Scanning the following QR code. Searching for Microsoft Defender in your app store. Sharing with your devices, the following link: Copy link.
- Stay protected with Windows Security - Microsoft SupportWindows 10 and 11 include Windows Security, which provides the latest antivirus protection. Your device will be actively protected from the moment you start Windows. Windows Security continually scans for malware (mal icious soft ware), viruses, and security threats.
- How to start a scan for viruses or malware in Microsoft DefenderHow to start a scan for viruses or malware in Microsoft Defender. Applies To. Important: The National Public Data breach exposed personal information, including names, addresses, and social security numbers. Learn how to protect yourself and how Microsoft Defender is helping to prevent fraud.
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