February 9, 2021 - KB4601319 (OS Builds 19041.804 and 19042.804)
Windows 10, version 2004, all editions Windows Server version 2004 Windows 10, version 20H2, all editions Windows Server, version 20H2, all editions
Highlights
- Updates to improve security when using input devices such as a mouse, keyboard, or pen.
- Updates for verifying usernames and passwords.
Improvements and fixes
Windows 10, version 20H2
This security update includes quality improvements. Key changes include:
- This build includes all the improvements from Windows 10, version 2004.
Windows 10, version 2004
This security update includes quality improvements. Key changes include:
- Addresses a possible elevation of privilege vulnerability in the win32k component.
- Addresses an issue that might damage the file system of some devices and prevent them from starting up after running chkdsk /f.
- Updates the Netlogon Elevation of Privilege Vulnerability (CVE-2020-1472) to enable Enforcement mode. For more details, see CVE-2020-1472 and How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472.
- Security updates to the Windows App Platform and Frameworks, Windows Apps, Windows Input and Composition, Windows Cloud Infrastructure, Windows Management, Windows Authentication, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Core Networking, and Windows Hybrid Cloud Networking.




Windows Server, version 2004 is a Semi-Annual Channel (SAC) Release. In our most recent Windows Server SAC releases, we've optimized for containers. In this release, we continued improving fundamentals for the core container platform such as performance and reliability. We've also worked with .NET team and PowerShell team and further optimized image size and performance for Server Core containers. We will share more details below. On container networking side, we implemented several improvements to allow for better scalability, robustness, and reliability. One example is additional changes and improvements to Direct Server Return (DSR).
Windows Server, version 20H2 is the next Semi-Annual Channel release of Windows Server, version 2004. This version focuses on reliability, performance, and other general improvements, but has no new features. Like other Semi-Annual Channel releases, it's supported for 18 months after its release.
Microsoft Corporation, leading developer of personal-computer software systems and applications. The company also publishes books and multimedia titles, offers e-mail services, and sells electronic game systems, computer peripherals (input/output devices), and portable media players. It has sales offices throughout the world.
Product: Windows Server
Version: 20H2 SAC 19042.804.vb_release_svc_prod1.210128-1115 MSDN
Supported Architectures: x64
Website Home Page : www. microsoft.com
Language: english
System Requirements: PC *
Size: 3.4 Gb


Minimum:
- Processor: 1 gigahertz (GHz) or faster processor or SoC
- RAM: 2 gigabyte (GB) for 64-bit
- Hard disk space: 32 GB for 64-bit OS
- Graphics card: DirectX 9 or later with WDDM 1.0 driver
- Display: 800 x 600, a minimum diagonal display size for the primary display of 7-inches or larger.