Fix for Windows Update Error 4011566 Summary
KB4011566 updates the following software components for Windows Server 2016 and certain versions of Windows 10. This update primarily focuses on improving system stability, security enhancements, and addressing known issues that impact performance or functionality. It also includes fixes related to Windows Defender Application Control (WDAC) and improvements in Group Policy processing.
KB4011566 Fixes Windows Update Error 4011566 – Patch Details Revealed
This cumulative update resolves several critical vulnerabilities and issues affecting the system’s core components such as .NET Framework, Windows Kernel, and Windows Update Services. Specifically, it addresses:
- Several security vulnerabilities that could allow remote code execution or elevation of privilege if a user views specially crafted web content.
- Bugs in various aspects of Windows Server, including issues with the Hyper-V hypervisor, which can cause system instability under certain conditions.
- Issues related to Group Policy processing and application control features such as WDAC that could lead to configuration errors or failures in policy enforcement.
This update also includes improvements for reliability, performance, and compatibility of Windows Server 2016 with other software products.
Howto install KB4011566
- Ensure you have administrative privileges on the system before proceeding with the installation process. This is necessary to install updates that require elevated permissions.
- To download the update directly from Microsoft Update Catalog, visit Microsoft Update Catalog and search for “KB4011566”. Choose the appropriate language version of the package and click on it to start the download.
- Once downloaded, run the installer (usually named WindowsTH-KB4011566-x64.msu) by double-clicking on the file or using command line options as “msu.exe /i path_to_file”.
- If you prefer to install through Windows Update service, go to Settings > Update & Security, click Check for updates and wait until all available updates are listed. Select ‘KB4011566’ from the list and follow the on-screen instructions.
- During installation, ensure your system is connected to the internet so that any additional files required by the update can be downloaded automatically.
- After initiating the install process, allow sufficient time for it to complete. The installer will reboot your machine once necessary resources are applied.
Similar questions
What is the update KB4011566 and what does it do?
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