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Microsoft Windows 11 26H1 Updates

Software Utilities Windows

Here you will find all software, firmware, and hardware updates from Microsoft Windows 11 26H1.

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New Release every
14 days
Critical fixes
9
Security-related releases
90%

Risk factor
A total of 2 users have rated 3 of 16 updates for Windows 11 26H1.

Smooth installs 100%
Minor issues 0%
Major issues 0%

Updates for Microsoft Windows 11 26H1

Windows 11 26H1 Logo

KB5124012 for Windows 11 version 26H1 updates OS Build 28000.2954 with the latest security fixes and non-security improvements from KB5120996. It also improves Secure Boot targeting, fixes Teams and Outlook crashes on Arm64, and addresses Remote Desktop audio redirection issues. Reference IDs: KB5125104.

Security update Microsoft Windows 11 26H1
Sep 8, 2026
OS Build 28000.2954
Security update Microsoft Windows 11 26H1
Sep 8, 2026
OS Build 28000.2954
Windows 11 26H1 Logo

Windows 11, version 26H1 is for new devices with select silicon starting early 2026. Microsoft says devices on earlier Windows 11 versions will not be offered 26H1 through Windows Update or as an in-place upgrade.

Security update Microsoft Windows 11 26H1
Aug 29, 2026
Windows 11, version 26H1
Security update Microsoft Windows 11 26H1
Aug 29, 2026
Windows 11, version 26H1
Windows 11 26H1 Logo

KB5121000 for Windows 11, version 26H1 updates OS Build 28000.2704 with the latest security fixes and non-security improvements from prior releases. It also references the August 2026 Security Updates guide and includes servicing stack update KB5121292.

Security update Microsoft Windows 11 26H1
Aug 11, 2026
OS Build 28000.2704
Security update Microsoft Windows 11 26H1
Aug 11, 2026
OS Build 28000.2704
Windows 11 26H1 Logo

KB5101681 for Windows 11 version 26H1 (OS Build 28000.2608) is a non-security preview update with quality improvements, new features, and reliability fixes. It also includes KB5101747 servicing stack update and AI components version 1.2608.856.0. Reference IDs: KB5101649.

Microsoft Windows 11 26H1
Jul 28, 2026
OS Build 28000.2608
Microsoft Windows 11 26H1
Jul 28, 2026
OS Build 28000.2608
Windows 11 26H1 Logo

KB5101649 for Windows 11 version 26H1 (OS Build 28000.2525) includes July 2026 security updates, non-security improvements from KB5095051 and KB5095091, and servicing stack update KB5121292. It also adds RDP SHA-2 thumbprint support and security hardening for TDI transport registration.

Security update Microsoft Windows 11 26H1
Jul 14, 2026
OS Build 28000.2525
Security update Microsoft Windows 11 26H1
Jul 14, 2026
OS Build 28000.2525
Windows 11 26H1 Logo

KB5095091 updates Windows 11 version 26H1 to OS Build 28000.2340 with quality improvements, new AI-related UI features, and fixes for File Explorer, Windows Hello, USB, and more. It also includes a known issue affecting Microsoft Office launches from some third-party apps. Reference IDs: KB5101277.

Security update Microsoft Windows 11 26H1
Jun 23, 2026
OS Build 28000.2340
Security update Microsoft Windows 11 26H1
Jun 23, 2026
OS Build 28000.2340
Windows 11 26H1 Logo

KB5095051 (OS Build 28000.2269) is a cumulative update for Windows 11 version 26H1 that includes the latest security fixes, non-security improvements from prior preview releases, and servicing stack update KB5101277. Reference IDs: KB5089548, KB5089570.

Security update Microsoft Windows 11 26H1
Jun 9, 2026
OS Build 28000.2269
Security update Microsoft Windows 11 26H1
Jun 9, 2026
OS Build 28000.2269
Windows 11 26H1 Logo

KB5089570 updates Windows 11 version 26H1 to OS Build 28000.2179 with new features, reliability improvements, and security-related driver policy changes. It also adds Secure Boot targeting and policy controls, plus AI component updates. Reference IDs: KB5083806.

Security update Microsoft Windows 11 26H1
May 26, 2026
OS Build 28000.2179
Security update Microsoft Windows 11 26H1
May 26, 2026
OS Build 28000.2179
Windows 11 26H1 Logo

KB5089548 updates Windows 11, version 26H1 to OS Build 28000.2113 with the latest security fixes, non-security improvements from prior preview releases, and servicing stack updates. It also improves SSDP reliability and game compatibility. Reference IDs: KB5083768, KB5083806, KB5092761.

Security update Microsoft Windows 11 26H1
May 12, 2026
OS Build 28000.2113
Security update Microsoft Windows 11 26H1
May 12, 2026
OS Build 28000.2113
Windows 11 26H1 Logo

KB5083806 (OS Build 28000.1896) is a non-security preview update for Windows 11 version 26H1. It adds new AI-powered and Settings features, improves reliability across File Explorer, display, printing, and Windows Hello, and includes servicing stack update KB5088834. Reference IDs: KB5074105, KB5083768.

Security update Microsoft Windows 11 26H1
Apr 30, 2026
OS Build 28000.1896
Security update Microsoft Windows 11 26H1
Apr 30, 2026
OS Build 28000.1896
Windows 11 26H1 Logo

KB5083768 updates Windows 11, version 26H1 with the latest security improvements and non-security fixes from KB5079466. It adds Secure Boot status visibility, improves SMB compression over QUIC, and strengthens phishing protection for Remote Desktop (.rdp) files. Reference IDs: KB5088834, KB5083806.

Security update Microsoft Windows 11 26H1
Apr 14, 2026
OS Build 28000.1836
Security update Microsoft Windows 11 26H1
Apr 14, 2026
OS Build 28000.1836
Windows 11 26H1 Logo

KB5079489 (OS Build 28000.1764) is a non-security Windows 11 version 26H1 preview update with quality improvements, new features, and servicing stack update KB5085536. Microsoft reports no known issues.

Security update Microsoft Windows 11 26H1
Mar 26, 2026
OS Build 28000.1764
Security update Microsoft Windows 11 26H1
Mar 26, 2026
OS Build 28000.1764
Windows 11 26H1 Logo

KB5079466 updates Windows 11, version 26H1 to OS Build 28000.1719 with security improvements and non-security fixes from the February preview release. It also improves Secure Boot certificate targeting, WDAC COM object allowlisting, and Windows System Image Manager catalog trust handling. Reference IDs: KB5077239, KB5078262.

Security update Microsoft Windows 11 26H1
Mar 10, 2026
OS Build 28000.1719
Security update Microsoft Windows 11 26H1
Mar 10, 2026
OS Build 28000.1719
Windows 11 26H1 Logo

KB5077239 (OS Build 28000.1643) is a non-security preview update for Windows 11 version 26H1. It adds Secure Boot PowerShell tools, expands Copilot+ and Windows features, and includes quality improvements plus the servicing stack update KB5078262.

Security update Microsoft Windows 11 26H1
Feb 24, 2026
OS Build 28000.1643
Security update Microsoft Windows 11 26H1
Feb 24, 2026
OS Build 28000.1643
Windows 11 26H1 Logo

KB5077179 updates Windows 11 version 26H1 to OS Build 28000.1575 with the latest security fixes, non-security improvements, and new features. It also includes servicing stack update KB5077868 and updates AI components.

Security update Microsoft Windows 11 26H1
Feb 10, 2026
OS Build 28000.1575
Security update Microsoft Windows 11 26H1
Feb 10, 2026
OS Build 28000.1575
Windows 11 26H1 Logo

KB5077179 updates Windows 11 version 26H1 to OS Build 28000.1575 with the latest security fixes, non-security improvements, and new features. It also includes servicing stack update KB5077868 and addresses graphics, WPA3-Personal Wi-Fi, BitLocker HLK, and TrustedInstaller issues.

Security update Microsoft Windows 11 26H1
Feb 10, 2026
OS Build 28000.1575
Security update Microsoft Windows 11 26H1
Feb 10, 2026
OS Build 28000.1575