July 14 2026 Kb5099414 Os Build 22631 7376

This cumulative update for Windows 11, version 23H2 (KB5099414), includes the latest security fixes and improvements, along with non-security updates from last month’s optional preview release. Visit the Windows release health dashboard for the latest status on this release.

This section provides key notifications related to this release, including announcements, change logs, and end-of-support notices.

Windows Secure Boot certificate expiration

Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices over the past several months. Devices that haven’t received the newer certificates will continue to start and operate normally, and standard Windows updates will continue to install. Updated certificates will continue to be delivered through Windows Update in the coming months.

Windows 11. Version 23H2 Enterprise and Education will reach end of updates on November 10, 2026. Devices running these editions will no longer receive fixes for known issues, time zone updates, technical support, or monthly security and preview updates containing protections from the latest security threats.

To stay protected and up to date, we recommend you upgrade to the latest version of Windows 11 .

This update addresses security issues for your Windows operating system.

Use EKB KB5027397 to update to Windows 11, version 23H2.

This security update contains fixes and quality improvements from KB5093998 (released June 09, 2026). The following summary outlines key issues addressed by this update. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.

If you've already installed updates, your device will download and install only the new updates included in this package.

For more information security vulnerabilities, see the Security Update Guide and the July 2026 Security Update .

Microsoft is not currently aware of any issues with this update.

Before you install this update

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information SSUs, see Servicing stack updates .

If you deploy dynamic updates such as this update to an existing Windows image, ensure the boot.stl file is included as part of the installation media. Failure to include the file might prevent devices from successfully starting from the installation media and can result in error code 0xc0430001 .

The boot.stl file is used during Secure Boot validation and must match the Windows version and architecture of the image you are updating.

To ensure the boot.stl file is included as part of the installation media, do one of the following:

For information how to apply Dynamic Update packages to existing Windows images, see Update Windows installation media with Dynamic Update .

To install this update, use one of the following Windows and Microsoft release channels.

For a list of the files provided in this update, download the file information for cumulative update 5099414 .

For a list of the files provided in the servicing stack update, download the file information for the SSU (KB5104023) - versions 22621.7373 .

Windows release health

Microsoft Store for Business and Education with Configuration Manager

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