KB3135993 Summary – Resolved Error 0x80070643 on Windows Update Fixes
KB3135993 updates the .NET Framework on Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2 to address multiple security vulnerabilities and non-security issues. This update is part of the broader set of improvements for the .NET Framework, focusing primarily on enhancing security and stability for applications that rely on it. The update package also includes a number of fixes for known bugs and performance improvements.
KB3135993 introduces several changes to enhance the security posture of systems running affected versions of Windows by addressing critical vulnerabilities in the .NET Framework components such as ASP.NET, WCF, and more. These updates aim at preventing exploitation through various vectors, ensuring that applications built on these frameworks are less susceptible to attacks. Additionally, KB3135993 resolves several non-security issues affecting user experience and stability of .NET Framework-based applications.
This update addresses a range of security vulnerabilities including but not limited to Cross-Site Scripting (XSS), Denial of Service (DoS) conditions, and arbitrary code execution. It also corrects several bugs that could cause application crashes or unexpected behavior in various scenarios such as improper handling of certain types or under specific environmental conditions.
KB3135993 Description – Addresses and Patches Error 0x80070643 Affecting Windows Update Service
The following are the primary issues addressed by KB3135993:
– **Security Vulnerabilities**: Fixes for vulnerabilities affecting ASP.NET and other .NET Framework components which could lead to security breaches if exploited. This includes mitigations against XSS, DoS attacks, and scenarios that allow arbitrary code execution.
– **Non-Security Bugs**: Resolved issues impacting the stability or functionality of applications relying on .NET Framework such as crashes due to improper handling of certain types or objects, memory leaks, and other performance-related issues.
– **Performance Improvements**: Enhancements designed to improve the overall performance and efficiency of .NET Framework-based applications running under Windows 8.1, Windows RT 8.1, and Windows Server 2012 R2.
Howto install KB3135993
1. Ensure your system meets the prerequisites for installing KB3135993 by verifying that you are using one of the supported versions of Windows (Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2).
2. Download the update package from a trusted source such as the Microsoft Update Catalog or your organization’s internal distribution server.
3. If downloaded to your local machine, navigate to the directory where KB3135993 is stored and double-click on the installer file (e.g., Windows8.1-KB3135993-x64.msu).
4. Follow the prompts in the Windows Update wizard that appears to start installing KB3135993.
5. During installation, you may be prompted to restart your computer for the changes to take effect. It is recommended to close any open applications and save all work before proceeding with a system reboot.
6. After restarting, check if the update has been successfully installed by examining the list of installed updates through Control Panel > Programs and Features (Windows 8.1/RT) or Server Manager > Windows Updates (Windows Server 2012 R2).
7. If you are unsure whether KB3135993 is present on your system, use the wusa command-line tool with the /list switch to review all installed updates.
8. To verify that KB3135993 has been applied correctly and there were no installation errors, refer to the Microsoft Knowledge Base article for any specific post-installation steps or troubleshooting guidance provided by Microsoft.
Similar questions
What does KB3135993 update on my Windows system?
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Can you tell me what potential issues might arise after installing KB3135993 and how to fix them?
Will updating with KB3135993 cause any programs I currently use to stop working?
How can I roll back or uninstall the update KB3135993 if it causes problems on my system?
Is there a way to download KB3135993 manually instead of waiting for Windows Update to install it automatically?
What are the recommended system requirements before installing update KB3135993?
Can you explain what types of files or settings does KB3135993 modify when it’s installed?
Does updating with KB3135993 increase my Windows system’s security in any way?
How can I get support if I encounter issues after installing update KB3135993?