Quote:Today is Patch Tuesday, and you know what that means. All supported versions of Windows are getting updated today. In the arena of Windows 10, that means every version except for version 1511. Yes, Microsoft still supports nine versions of Windows 10, plus there's an update that Insiders are getting today for version 20H2.
 
Let's start with the newest version. If you're on Windows 10 version 2004 or an Insider on version 20H2, you'll get KB4579311, bringing the build number to 19041.572 or 19042.572, respectively. You can manually download it here, and these are the highlights:

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• Updates to improve security when using Microsoft Office products.
  
• Updates for verifying usernames and passwords.
  
• Updates to improve security when Windows performs basic operations.
  

Here's the full list of fixes:

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• 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%\systm32. 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.