The Windows firewall is a fine place to start, but there are better options.

Learn how BitLocker, passkeys, Microsoft Defender, and other Windows 11 security features protect your data, accounts, apps, and devices.

All Windows PCs come with a built-in security feature called Windows Defender Application Control (WDAC), which helps prevent unauthorized software from running by allowing only trusted applications.

For most people using a supported and fully updated Windows 11 computer, yes: Microsoft Defender Antivirus and the other protections inside Windows Security are sufficient as the primary antivirus.

Microsoft has released a new security application for consumer subscribers to the Microsoft 365 Personal or Microsoft 365 Family product suites, as described in a Thursday announcement. This new ...

Windows 11 22H2 is now arriving, and as well as new features, Microsoft's latest operating system update also brings security upgrades. With ransomware, sophisticated hacking attacks, and phishing ...

Ask your administrator Start Windows Security Health Service Reinstall using Windows Terminal Check Group Policy settings Use System Restore point Before you begin, you should know that now Windows ...

The Microsoft Defender antivirus product built into Windows 10 and 11 is generally good enough at detecting and removing malware that most people don’t need to pay for a separate antivirus product.