KB3012235 Summary: Addressing Error Code 401 in Windows Update Services
KB3012235 is an update released for Microsoft Windows operating systems that addresses several security vulnerabilities and non-security issues. This cumulative update package includes all the security fixes since the previous cumulative update, as well as improvements to system stability, performance, and compatibility with various applications.
This particular update primarily targets Internet Explorer browser components but also applies to other critical system files used by Windows Update services, ensuring that these systems are secure against newly discovered vulnerabilities and threats. It includes enhancements for web browsing security, protection against phishing attacks, and improvements in the way ActiveX controls and scripting engines process objects.
Additionally, KB3012235 resolves issues related to system stability such as crashes or unexpected shutdowns that occur when specific conditions are met, like using particular software applications with certain Windows features enabled. It also addresses compatibility issues with third-party applications by updating APIs and ensuring a more robust integration between these programs and the operating system.
This cumulative update can be installed through various methods including automatic updates managed by Windows Update or manually downloaded from Microsoft’s website for deployment in environments where automatic updates are not available or preferred.
KB3012235 Details: Fixes and Enhancements for Error Code 401 in WSUS Configuration
KB3012235 resolves several security vulnerabilities affecting Internet Explorer, particularly those related to cross-site scripting and object handling within the browser environment. This update strengthens the security posture of users against potential exploits that could compromise system integrity and personal data privacy.
Furthermore, it addresses non-security issues such as stability problems where Windows Update services might fail to install updates correctly or cause the system to become unresponsive during the installation process. The cumulative update package includes fixes for known bugs in how certain system files interact with other parts of the operating environment, leading to improved overall reliability and performance.
Other notable changes include enhancements to ActiveX control management, ensuring that third-party components are properly validated before execution within Internet Explorer. This helps prevent potential security risks associated with untrusted or malicious code attempting to run under the guise of trusted software.
Howto install KB3012235
To install KB3012235 manually via Windows Update:
1. Press Win+R, type wuapp into the Run dialog, and press Enter.
2. If prompted by User Account Control (UAC), click on the “Yes” button to proceed with running Windows Update as an administrator.
3. In the left-hand menu of the Windows Update window, select “Check for updates.” The system will begin scanning for any available updates including KB3012235 if it is not already installed.
4. Once the scan completes, click on the “Install updates” button to start downloading and installing the selected updates. This may take some time depending on your internet connection speed and number of updates available.
5. If prompted during installation, allow any necessary reboots by clicking “Restart now.” It’s important not to shut down or restart your computer until Windows Update has completed its tasks.
6. After the update is installed, a notification will appear in the system tray indicating that updates have been successfully applied and are ready for use.
To install KB3012235 from Microsoft’s Download Center:
7. Visit the download page for KB3012235 on the Microsoft website.
8. Click “Download” to start downloading the update file. Save it to a convenient location such as your desktop or downloads folder.
Note: After downloading, you may need to run additional setup files specific to your version of Windows before proceeding with installation steps similar to those described above for automatic updates through Windows Update.
Similar questions
What does KB3012235 update on my computer?
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Will updating with KB3012235 affect any of my current programs or settings?
Can you tell me how to safely uninstall update KB3012235 from my computer?
What are the minimum system requirements for installing update KB3012235 on my Windows 7 PC?
I heard about some issues with KB3012235, can you tell me what they are and how to fix them?
How does update KB3012235 improve security features in Windows 8.1?
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What are the steps to roll back to an earlier version after applying KB3012235 update if it causes problems?
Is there any special maintenance required for my system after installing update KB3012235?