HTTP 404 Error Resolved in Latest KB4340557 Patch

Fix for Error 404 when accessing KB4340557

KB4340557 is an update from Microsoft for Windows operating systems. This cumulative update package includes quality improvements and security updates for Windows Server 2016, Windows 10 version 1809, and later versions of Windows. It also addresses several issues related to stability and performance.

KB4340557 Update Fixes HTTP 404 Not Found Issue

This update primarily resolves multiple vulnerabilities affecting various components of the Windows operating system such as Internet Explorer, Edge browser, Script Engine, Windows Media Foundation, Windows Kernel, Windows Graphics Device Interface (GDI), Windows Network File System (NFS) Client, Microsoft .NET Framework, Windows Installer, and other critical areas. The specific issues addressed include remote code execution vulnerabilities, denial of service conditions, information disclosure problems, and elevation of privilege risks. These fixes enhance the overall security posture by mitigating potential attack vectors and ensuring that systems are protected against known threats.

Howto install KB4340557

To install KB4340557, follow these steps:

  1. Ensure your system meets all prerequisites for installing cumulative updates.
  2. Download the update from Microsoft’s official website or use Windows Update to check for available updates automatically.
  3. If downloading manually, save the downloaded file (.msu) in a temporary location and run it as administrator.
  4. Select “Install Now” if prompted by Windows Update; otherwise, proceed with manual installation through Control Panel > Uninstall Program > View Installed Updates > Search for KB4340557 > Click “Change.”
  5. Follow on-screen instructions to complete the installation process.
  6. Reboot your computer after the update completes. This is essential as certain updates require a restart to finalize changes.
  7. If issues arise post-installation, you can use Windows Update Troubleshooter or revert back using System Restore if available.

Similar questions

What does KB4340557 update?
How can I check if my Windows system has the KB4340557 update installed?
Will installing KB4340557 affect my computer’s performance or speed?
Can you explain what kind of security issues are addressed by the KB4430557 update?
Do I need to restart my computer after installing KB4340557?
Is there a way to roll back or uninstall KB4340557 if it causes problems?
Will installing KB4340557 fix any known issues with Windows updates?
How can I download and install KB4340557 manually without automatic updates?
Does the KB4340557 update include any new features or improvements for my applications?
Can updating to KB4340557 help protect against recent cyber threats?