2026-03 Cumulative Update for Windows 10 Version 22H2 for x86-based Systems (KB5078885)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...

2026-03 Dynamic Cumulative Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5078885)

ComponentUpdate: A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft...

2026-01 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5073724)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information. After you install this item, you may have to restart your computer...

2025-12 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5071546)

2025-12 Cumulative Update for Windows 10 Version 22H2 for x64-based Systems KB5071546...

2025-11 Cumulative Update for Windows 10 Version 21H2 for ARM64-based Systems (KB5068781)

Install this update to resolve issues in Windows. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article for more information. After you install this item, you may have to restart your computer...

2025-08 Dynamic Cumulative Update for Windows 10 Version 22H2 for x64-based Systems (KB5063709)

ComponentUpdate: A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft...

May 19, 2025—KB5061768 (OS Builds 19044.5856 and 19045.5856) Out-of-band

May 19, 2025—KB5061768 OS Builds 19044.5856 and 19045.5856 Out-of-band Support for Windows 10 has ended on October 14, 2025 After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will stil...

April 11, 2025—KB5058921 (OS Build 14393.7973) Out-of-band

April 11, 2025—KB5058921 OS Build 14393.7973 Out-of-band For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 10, version 1607, see its update history page. Important Windows updates d...

2024-12 Cumulative Update for Windows 10 Version 1809 for x86-based Systems (KB5048661)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...

July 27, 2021—KB5005394 (OS Build 17763.2091) Out-of-band

July 27, 2021—KB5005394 OS Build 17763.2091 Out-of-band 6/15/21 IMPORTANT This release includes the Flash Removal Package. Taking this update will remove Adobe Flash from the machine. For more information, see the Update on Adobe Flash Player End of Support. 5/11/21 REMINDER Windows 10, version...

Compatibility update for installing Windows 10, version 2004: July 14, 2020

Compatibility update for installing Windows 10, version 2004: July 14, 2020 Summary This compatibility update makes improvements to ease the installation experience when updating to Windows 10, version 2004. How to get this update This compatibility update is available through Windows Update. It...

September 24, 2019—KB4516045 (OS Build 17134.1039)

September 24, 2019—KB4516045 OS Build 17134.1039 The Windows 10 April 2018 Update will reach end of service on November 12, 2019 for Home and Pro editions. We will begin updating devices running the Windows 10 April 2018 Update starting July 16, 2019 to help ensure that these devices remain in a...

August 30, 2019 — KB4511555 Cumulative Update for .NET Framework 3.5, 4.8 for Windows 10, version 1903

August 30, 2019 — KB4511555 Cumulative Update for .NET Framework 3.5, 4.8 for Windows 10, version 1903 Release Date: 08/30/2019 Version: Microsoft .NET Framework 4.8 The August 30, 2019 update for Windows 10, version 1903 includes cumulative reliability improvements in .NET Framework 3.5 and 4.8...

Compatibility update for installing Windows 10, version 1903: August 27, 2019

Compatibility update for installing Windows 10, version 1903: August 27, 2019 Summary This update makes improvements to ease the installation experience when updating to Windows 10, version 1903. How to get this update This update is available through Windows Update. It will be downloaded and...

August 16, 2019—KB4512494 (OS Build 16299.1365)

August 16, 2019—KB4512494 OS Build 16299.1365 Reminder: March 12 and April 9 were the last two Delta updates for Windows 10, version 1709. Security and quality updates will continue to be available via the express and full cumulative update packages. For more information on this change please vis...

Windows 10 Bug Let UWP Apps Access All Files Without Users' Consent

Microsoft silently patched a bug in its Windows 10 operating system with the October 2018 update version 1809 that allowed Microsoft Store apps with extensive file system permission to access all files on users' computers without their consent. With Windows 10, Microsoft introduced a common...

July 12, 2016 — KB3163912 (OS Build 10240.17024)

July 12, 2016 — KB3163912 OS Build 10240.17024 This update includes quality improvements and security fixes. No new operating system features are being introduced in this update. Key changes include: Improved reliability of Internet Explorer 11, Windows Explorer, and Windows Update. Fixed issue i...

June 27, 2017—KB4022716 (OS Build 15063.447)

June 27, 2017—KB4022716 OS Build 15063.447 NOTE: The update that this article describes is no longer available and has been replaced by a newer update. It is recommended that you install the most current cumulative update, KB4025342. Improvements and fixes This non-security update includes qualit...

CVE-2018-5174

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEEMASKFLAGNOUI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and i...

February 22, 2018—KB4077528 (OS Build 15063.936)

February 22, 2018—KB4077528 OS Build 15063.936 Improvements and fixes This update includes quality improvements. No new operating system features are being introduced in this update. Key changes include: Addresses issue where an application cannot read or write attributes of windows that belong t...