KB4493178: Summary of Fixes for Error Code 0x80070643
KB4493178 is an important update for Microsoft Windows that addresses multiple security vulnerabilities and issues across various versions of Windows. This cumulative update includes fixes for several critical and moderate severity bugs, enhancing the overall stability and security of affected systems.
This update primarily targets Windows 10 version 21H2 and earlier versions such as 21H1, 20H2, 1909, 1809, 1709, and also includes support for some editions of Windows Server. It encompasses numerous security updates that address vulnerabilities in various components such as Windows Shell, Internet Explorer, Microsoft Edge, Scripting Engine, Graphics Components, the Windows Common Log File System Driver (CLFS), Windows Media, Windows XML Web Services, and more.
By installing KB4493178, administrators can ensure their systems are protected against potential threats that could exploit these vulnerabilities. The update also includes non-security fixes to improve system reliability, performance, and compatibility with other software and hardware components.
KB4493178: Description and Details on What is Patched for Error Code 0x80070643
This cumulative update resolves several security and non-security issues across various Microsoft products:
– **Windows Shell**: Fixes a vulnerability in the Windows Shell that could allow elevation of privilege attacks.
– **Internet Explorer**: Addresses multiple vulnerabilities that could be exploited through malicious web content or scripts to compromise user systems.
– **Microsoft Edge**: Resolves several security issues, including use-after-free and type confusion vulnerabilities.
– **Scripting Engine**: Enhances security by addressing a remote code execution vulnerability in the Microsoft Windows Scripting engine.
– **Graphics Components**: Fixes various memory corruption vulnerabilities that could allow an attacker to execute arbitrary code remotely.
– **Windows Common Log File System Driver (CLFS)**: Addresses a denial-of-service condition that could be exploited through a specially crafted CLFS file.
– **Windows Media**: Improves security by fixing buffer overflow issues in Windows Media components, which can lead to remote code execution.
– **Windows XML Web Services**: Resolves vulnerabilities in the Windows Remote Desktop Protocol (RDP) and Windows XML Web Services.
In addition to these critical fixes, KB4493178 also includes non-security updates that enhance system performance and stability. These include improvements in how Windows handles certain file types, resolves crashes under specific conditions, and optimizes memory usage for better overall performance.
Howto install KB4493178
To install the cumulative update KB4493178 on your system, follow these steps:
1. Open the Settings app by clicking on the Start menu or pressing Win+I.
2. Go to “Update & Security” and click on “Windows Update.”
3. Click on “Check for updates.” Windows will search for any available updates.
4. If KB4493178 is listed, select it from the list of available updates.
5. Click “Download and install,” then restart your computer when prompted to complete the installation process.
6. Alternatively, you can download the standalone package directly from Microsoft’s website if automatic updates are not an option for your environment.
7. Once downloaded, run the installer program by double-clicking it.
8. Follow on-screen instructions to complete the update installation and system restart as required.
After installing KB4493178, ensure that all systems have been restarted correctly to apply the changes effectively.
Similar questions
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