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Windows Security is your home to manage the tools that protect your device and your data: Virus & threat protection - Monitor threats to your device, run scans, and get updates to help detect the latest threats.
Windows Security works to help protect your device by scanning for malicious or unwanted software, and also uses real-time protection to scan everything you download or run on your device.
Virus & threat protection in Windows Security helps you scan for threats on your device. You can also run different types of scans, see the results of your previous virus and threat scans, and get the latest protection offered by Microsoft Defender Antivirus.
Keep your computer secure at home. Keeping your computer secure helps you avoid malware and direct hacking attempts designed to steal your personal information. Here are some ways you can help reduce your online risk when you use your computer at home.
Windows Security is pre-installed on Windows 10 and ready for you to use at any time.
Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.
When you start up Windows 10 for the first time, Windows Security is on and actively helping to protect your PC by scanning for malware (malicious software), viruses, and security threats. Windows Security uses real-time protection to scan everything you download or run on your PC.
Use antimalware programs, such as Windows Security, whenever you’re concerned your PC might be infected. For example, if you hear about new malware in the news or you notice odd behavior on your PC. See Virus & threat protection in Windows Security for how to scan your device.
Device Encryption is a Windows feature that enables BitLocker encryption automatically for the Operating System drive and fixed drives. It’s particularly beneficial for everyday users who want to ensure their personal information is safe without having to manage complex security settings.
Windows Security, formerly known as Windows Defender Security Center, is an app built into Windows 10 or 11 that helps keep your PC more secure. It includes Microsoft Defender Antivirus, an antivirus tool that helps protect you against viruses, ransomware, and other malware.