This security update includes fixes and quality improvements that are part of the following updates: August 12, 2025—KB5063709 (OS Builds 19044.6216 and 19045.6216) August 19, 2025—KB5066188 (OS Builds 19044.6218 and 19045.6218) Out-of-band The following is a summary of the issues that this update addresses when you install this update. If there are new features, it lists them as well. The ...

Restarting Windows should allow the scan for Windows updates to be completed. A permanent resolution for this issue is contained in the May Windows non-security preview update (KB5058499) and later updates. We recommend you install the latest update for your device. Microsoft is not currently aware of any issues with this update.

To get the standalone package (s) for this update, go to the Microsoft Update Catalog website. This KB contains one or more MSU files that must be installed in order. Download all MSU files for KB5058411 from Microsoft Update Catalog and place them in the same folder (for example, C:/Packages).

To learn more about Windows update terminology, see types of Windows updates and monthly quality update types. For an overview, see the update history page for Windows 11, version 24H2. Stay informed! Follow @WindowsUpdate for the latest updates from the Windows Release Health Dashboard.

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions. Install this update.

To learn more about Windows update terminology, see types of Windows updates and monthly quality update types. For an overview, see the update history page for Windows Server 2022. Stay informed! Follow @WindowsUpdate for the latest updates from the Windows Release Health Dashboard. Improvements and fixes This security update includes quality improvements. The following summary outlines key ...

Note: Windows Server 2025 Datacenter & Standard machines connected to Azure Arc, now have the option to subscribe to hotpatch servicing. Hotpatch provides the ability to install OS security updates without restarting your machine.

Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improve the reliability of the update process to mitigate potential issues while installing updates.

The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or area of the change. This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.

Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions. Install this update.