KB4579311 is a security update for Windows 10 v2004 systems. Here are the direct links to download KB4579311 offline installer for Windows 10 systems.
Just this couple of days back, Microsoft released an update for HP laptop users to fix the battery issues. This patch Tuesday, Microsoft released another update squarely from Windows 10 v2004 systems. KB4579311 is a security update with no other improvements or fixes. The update itself is pretty small but patches some important security bugs in Windows 10 v2004. Those security fixes include but not limited to possible win32k privilege escalation, group policy accidentally deleting files recursively in the System32 folder, null port creation under certain circumstances, flaws in Windows kernel, graphics component, virtualization, etc.
All in all, KB4579311 is a pretty small but much-needed security update for Windows 10 v2004 system. As always, the update is automatically installed. Otherwise, you can manually trigger the update from the Settings app (Settings → Update & Security → Windows Update).
Alternatively, you can also download KB4579311 offline installer with the links given below. The offline installers are especially useful when the Windows Update is not able to download the update or to install it on an offline machine.
Download KB4579311 Offline Installer
These are the download links for KB4579311 update offline installer.
KB4579311 For Windows 10 v2004 users:
KB4579311 32-bit (x86) offline installer (115.9 MB)
KB4579311 64-bit (x64) offline installer (346.8 MB)
Depending on your operating system version, click on the appropriate link to download the installer. Along with the above links, you can also use the MS Update Catalog website to download the update's offline installer.
KB4579311 Change Log
- Addresses an issue with a possible elevation of privilege in win32k.
- Addresses an issue with the Group Policy service that might recursively delete critical files in alphabetic order from %systemroot%\system32. This issue occurs when a policy has been configured to delete cached profiles. These file deletions might cause stop error “0x5A (CRITICAL_SERVICE_FAILED)” boot failures.
- Addresses an issue with creating null ports using the user interface.
- Security updates to Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Fundamentals, Windows Authentication, Windows Virtualization, and Windows Kernel.
That is all.