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If you are using Windows 10 version 2004 or newer, Microsoft released another update (KB5004237) this month to address several issues affecting Windows 10 systems. The last update (KB5004945) was released on July 6th to address a Windows Zero-day vulnerability called "PrintNightmare".


All users running Windows 10 version 2004 (May 2020 Update), Windows 10 version 20H2, and Windows 10 version 21H1 must update their systems with this KB5004237 update by running Windows Update from the Settings app.


Windows 10 update KB5004237 fixed several issues for versions 21H1, 20H2 and 2004


Windows 10 update KB5004237 for versions 21H1, 20H2 and 2004

Windows 10 update KB5004237 comes with the following fixes and improvements:

  • Updates for verifying usernames and passwords.
  • Updates to improve security when Windows performs basic operations.
  • Updates an issue that might make printing to certain printers difficult. This issue affects various brands and models, but primarily receipt or label printers that connect using a USB port.
  • Removes support for the PerformTicketSignature setting and permanently enables Enforcement mode for CVE-2020-17049.
  • Adds Advanced Encryption Standard (AES) encryption protections for CVE-2021-33757.
  • Addresses a vulnerability in which Primary Refresh Tokens are not strongly encrypted. This issue might allow the tokens to be reused until the token expires or is renewed.
  • Security updates to Windows Apps, Windows Management, Windows Fundamentals, Windows Authentication, Windows User Account Control (UAC), Operating System Security, Windows Virtualization, Windows Linux, the Windows Kernel, the Microsoft Scripting Engine, the Windows HTML Platforms, the Windows MSHTML Platform, and Windows Graphics.



How to download KB5004237 update for Windows 10

If your Windows Update service is enabled, you should have received this update. If not, open the Windows 10 Settings app, navigate to Windows Update and click "Check for Updates".


You can also manually download this update by clicking here.


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