Fix for Windows Error 0x80073CF9 Summary
KB5020805 is an update released for Windows 10 and Windows Server 2019 that addresses several security vulnerabilities, performance improvements, and bug fixes. This cumulative update includes a variety of fixes to enhance the stability and security of the operating system.
KB5020805 Update Fixes Annoying Error 0x80073CF9
This update resolves multiple issues affecting various components of Windows such as Kernel Mode Drivers, Microsoft Defender Application Guard, Hyper-V, Microsoft Edge WebView2, Internet Explorer 11, and many others. It specifically addresses vulnerabilities related to elevation of privilege, information disclosure, denial of service, and security feature bypass. Additionally, it includes improvements for system stability, performance optimization, and user experience enhancements like better compatibility with third-party applications and updated language features.
Howto install KB5020805
To install KB5020805 manually or through a specific method, follow these detailed steps:
- Download the update package from Microsoft’s official website or an authorized partner.
- Create a system restore point before installing any updates to safeguard against potential issues.
- Double-click on the downloaded file to start the installation process. Follow the prompts that appear on your screen to proceed with the installation.
- If prompted, allow User Account Control (UAC) by clicking “Yes” or entering administrative credentials when required.
- Once the setup wizard opens, review the terms and conditions then check the box agreeing to them before proceeding further.
- The installer will analyze your system for prerequisites. If any are missing, it will guide you through their installation first.
- Afterwards, click “Install” to begin updating Windows with KB5020805. The process may take some time depending on the size of the update and your computer’s performance.
- When the update is installed successfully, restart your computer as instructed by the installer to complete the installation process.
Similar questions
What does KB5020805 update on my Windows system?
How do I check if the update KB5020805 has been installed successfully?
Can you tell me what problems or issues have been fixed in the update KB5020805?
Is there a way to uninstall the update KB5020805 if it’s causing trouble on my computer?
Does installing KB5020805 require any specific steps like restarting the system multiple times?
Will updating with KB5020805 affect my existing software and applications?
What should I do if my Windows PC crashes after applying update KB5020805?
Is there a list of known issues related to the KB5020805 update that users have reported?
Can you guide me on how to download and install KB5020805 manually from Microsoft’s website if it doesn’t come through Windows Update?
Does updating with KB5020805 improve system security or privacy in any way?