Error 0x80070643 Fixed in KB4484338 Summary
KB4484338 is an update for Microsoft Windows operating systems, released to address various security vulnerabilities and improve system stability. This cumulative update includes fixes for a range of issues found in earlier versions of the OS and applications that run on it, such as Internet Explorer and Edge browser updates, improvements to Active Directory Domain Services (AD DS), and enhancements to PowerShell. The primary goal is to protect users from newly identified threats while maintaining performance and reliability. Additionally, this update includes several quality fixes for issues reported by customers and partners.
KB4484338 Update Fixes Error 0x80070643 and Enhances Stability
This cumulative update KB4484338 addresses multiple security vulnerabilities affecting Microsoft Windows operating systems. Notably, it resolves several critical Remote Code Execution (RCE) vulnerabilities in Internet Explorer and Edge browsers that could allow attackers to execute arbitrary code on a targeted system if the user visits a specially crafted website or opens a malicious document. The update also fixes an elevation of privilege vulnerability related to how the kernel-mode drivers handle objects in memory, which could be exploited by unprivileged users to gain SYSTEM privileges.
In addition, KB4484338 includes several non-security improvements and bug fixes that enhance system performance and reliability. For example, it resolves issues with certain applications crashing when trying to connect to a network share using SMBv2 or SMBv3 protocols on Windows Server 2016. Another notable fix addresses an issue where users might encounter delays or black screens while logging into a domain-joined computer running Windows 7 SP1.
Furthermore, the update resolves issues with PowerShell cmdlets not working as expected in specific scenarios and enhances Active Directory Domain Services (AD DS) functionality by addressing problems related to certain replication operations failing under high load conditions. These fixes contribute to a more stable and secure computing environment for all users.
Howto install KB4484338
To install the update KB4484338, follow these steps:
- Ensure that your Windows operating system is up-to-date with previous security patches.
- Open the Microsoft Update website or access it through Control Panel > Windows Update on your computer.
- Select “Check for updates” and wait for the system to scan available updates.
- When prompted, review the list of updates, including KB4484338, that have been identified as being necessary.
- If you want to download and install only this specific update, click on the arrow next to each update title to expand details and select or deselect individual items before installing.
- Select “Install updates” after reviewing all necessary settings.
- Wait for the installation process to complete. This may take some time depending on your system configuration.
- Reboot your computer when prompted, as this is usually required for any Windows update to finalize its application.
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