Windows 11 · 25H2 · Release · Security update (Patch Tuesday)

Windows 11, version 25H2 (26200.8655)

Windows 11 25H2: Current mainstream release

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AI summary

Windows 11 version 25H2 (26200.8655) delivers updated Start-style UI refinements, shared-audio and camera control improvements, and faster, lower-latency performance during common tasks like launching apps and opening menus. (thewincentral.com)

Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.

Microsoft's known issues — KB5094126

  • Issue Known issue Microsoft has received reports of an issue in which certain third-party applications might be unable to launch Microsoft Office applications or open documents after installing the Windows updates released on or after June 9, 2026. This issue affects certain third-party applications that use OLE automation to interact with Microsoft Office applications. In some cases, the Office application or document might fail to open without displaying an error message. Affected Microsoft Office applications might include Word, Excel, PowerPoint, Access, and other Microsoft Office applications when launched from within the affected third-party application. Reports indicate that this issue may affect appli Workaround: This issue is resolved in Windows updates released on and after July 14, 2026 such as KB5101650 . We recommend you install the latest Windows update for your device as it contains important improvements and issue resolutions, including this one. This issue is addressed in KB5095093 .

Microsoft's release notes for KB5094126 ›

Known issues — reported on the forum

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