Fix for Error Code 0x80070643 in KB4516066 Summary
KB4516066 is an update from Microsoft that primarily addresses security vulnerabilities and improves the stability and functionality of Windows operating systems. This cumulative update includes improvements in various areas such as Active Directory, Internet Explorer, Microsoft Edge, Windows Defender Application Control, and more. It also resolves issues related to compatibility with third-party applications and devices. Additionally, it enhances the overall performance and reliability of Windows by fixing bugs that could affect user experience or system stability.
KB4516066 Update Fixes Error Code 0x80070643 and Enhances System Stability
KB4516066 addresses a variety of vulnerabilities and issues across multiple components in Windows 10 and Windows Server, including but not limited to:
- Fixes security vulnerabilities in Windows CryptoAPI (Crypt32.dll) that could allow an attacker to spoof code-signing certificates for malicious purposes.
- Solves problems with DNS over HTTPS (DoH) that may cause connectivity issues or prevent users from accessing certain websites.
- Mitigates potential risks associated with the Windows Script Host, which could be exploited by attackers through various attack vectors like phishing emails or web pages.
- Improves compatibility and stability of Microsoft Edge and Internet Explorer, ensuring better performance when browsing the web and interacting with modern web applications.
- Addresses issues related to Windows Defender Application Control (WDAC) policies that may cause system instability or prevent some software from running correctly.
This update is crucial for maintaining a secure and stable environment in your Windows-based systems.
Howto install KB4516066
To install KB4516066, follow these steps:
- Navigate to the official Microsoft Update Catalog website using an internet browser.
- In the search bar at the top of the page, type “KB4516066” and press Enter to find the update package for download.
- Click on the link next to KB4516066 to start downloading the update file. Save it to a location you can easily access later.
- Once the download is complete, open Windows Update or use the Microsoft Update Catalog tool installed by Microsoft.
- In the Windows Update application, go to “Advanced options” and then select “View update history.”
- Select “Uninstall updates,” locate KB4516066 if it’s already installed, right-click on it, and choose “Uninstall.” This step is optional but recommended for a clean installation.
- Run the downloaded update file from your chosen location. Follow any prompts to install prerequisites or reboot as required by the installer.
- After installing KB4516066, restart your computer to apply the changes and ensure all components are updated.
Note: Always download updates directly from Microsoft sources to avoid malicious software.
Similar questions
What does KB4516066 update exactly?
Does this update fix any known bugs in Windows 10 or Windows Server versions?
How can I check if my system meets the requirements for installing KB4516066?
Will updating to KB4516066 affect the performance of my computer?
What should I do if I encounter issues after installing update KB4516066?
Is it necessary to restart my PC immediately after downloading KB4516066, or can I wait until later?
Will this update change any system settings that might affect the way applications run on my computer?
Can I roll back to a previous version of Windows if I install KB4516066 and it causes problems with an application or feature I need?
Is there a known list of issues for this specific update (KB4516066) that might affect my system compatibility or software functionality?
Are there any prerequisites I need to meet before installing KB4516066, such as having certain updates already installed?