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.

This cumulative update for Windows 11, version 25H2 and 24H2 (KB5077181), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release.

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)

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 February 2026 Security Updates.

This cumulative update for Windows 11, version 25H2 and 24H2 (KB5074109), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release.

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.

The Windows Update Assistant helps you manually download and install the latest Windows feature update on a compatible PC. Feature updates introduce new capabilities and help keep your device secure.

On the leftmost side of this page, you’ll find a list of all updates released for this version of Windows. Select any update to view more details, including release notes and known issues. Installing the latest update ensures you receive all previous updates, including important security fixes.

Windows devices get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR) . With this approach, updates may be gradually rolled out to devices.

To find an overview of Windows 11, see the update history pages for Windows 11, version 24H2 and Windows 11, version 25H2. Be sure to follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.