[German]Brief information for administrators who distribute updates via WSUS. The KB5063878 update from August 12, 2025, for Windows 11 24H2 caused installation failures (error code 0x80240069) on WSUS. Microsoft confirmed this issue in a support article on August 14, 2025, and corrected it by re-releasing the update for WSUS.
Update KB5063878 drops Error 0x80240069
Cumulative Update KB5063878 from August 12, 2025 for Windows 11 24H2 caused issues during installation via WSUS. I have received numerous reports that the installation aborts with error code 0x80240069 (see my blog post Windows 11 24H2: Update KB5063878 causes installation error 0x80240069). Several workarounds are also presented there, from registry entries to importing the update in WSUS (see also the supplementary comment here). Due to the effort involved and the necessary reboots, some administrators are waiting.
Microsoft confirmed this issue on August 14, 2025 in a support article and offers a KIR solution as a fix (see the blog post Windows 11 24H2: KIR fix for WSUS installation error 0x80240069 with update KB5063878 and the Microsoft support article August 2025 security update might fail to install via WSUS with Error 0x80240069 in the Windows 11 24H2 Release Health Dashboard).
Microsoft wrote that the security update (KB5063878) from August 12, 2025, for Windows 11 24H2 may fail with error code 0x80240069 when installed via Windows Server Update Services (WSUS).
Fixed by re-releasing update KB5063878
The Microsoft Support article August 2025 security update might fail to install via WSUS with Error 0x80240069 in the Windows 11 24H2 Release Health Dashboard now has the note "Resolved: 2025-08-14, 22:18 PT." As a solution, Microsoft writes that the problem with the Windows Update service has been fixed. If anyone has encountered this problem, they should refresh the page and resynchronize with Windows Server Update Services to install the latest update.
In the comments on my German blog post Windows 11 24H2: KIR-Fix für WSUS-Installationsfehler 0x80240069 bei Update KB5063878, numerous readers confirmed the re-release of the update and provided tips on what to do in case of problems (thank you for these comments).
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Microsoft Security Update Summary (August 12, 2025)
Patchday: Windows 10/11 Updates (August 12, 2025)
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Windows 11 24H2: Update KB5063878 causes installation error 0x80240069
Windows 11 24H2: KIR fix for WSUS installation error 0x80240069 with update KB5063878
