Learn how to check for and install the latest updates for Windows 11 and Windows 10 to keep your device secure and smooth. Find troubleshooting tips, activation help, and FAQs for Windows Update issues.

Windows Security app update This security update provides the latest changes for the Windows Security app. The update is composed of the Windows Security app and its underlying service. This update applies to only Windows 11 devices (build 22000 or later)

For information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, see Description of the standard terminology that is used to describe Microsoft software updates. To view other notes and messages, see the Windows 8.1 and Windows Server 2012 R2 update history home page.

If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device. For more information about security vulnerabilities, please refer to the new Security Update Guide website and the October 2025 Security Updates.

This means you receive the latest fixes and security updates, helping your device run efficiently and stay protected. Though updates are downloaded and installed automatically, they may not be available on all devices at the same time — we’re making sure updates are ready and compatible.

Starting June 26, 2025, Windows 11 version 22H2 (Enterprise and Education editions) will no longer receive non-security preview updates. However, monthly security updates will continue through October 14, 2025.

Learn how to use the Windows Security app to safeguard your device against viruses, malware, and ransomware. Find out how to access and manage features and settings such as real-time protection, scan options, and updates.

Windows Update is an essential component of Windows 10, ensuring your system remains secure, stable, and up-to-date with the latest features. However, issues can occasionally arise, preventing updates from installing.

This security update includes improvements that were a part of update KB5041865 (released August 27, 2024). Below is a summary of the key issues that this update addresses when you install this KB.

The ESU program enables PCs to continue to receive critical and important security updates through an annual subscription service after support ends. The Microsoft Security Response Center defines the severity rating for security updates.