Do Son 
Following the April 2025 security updates, administrators of Windows Server Update Services (WSUS) began encountering widespread issues with the deployment of the Windows 11 24H2 update across enterprise networks. Microsoft has officially acknowledged the fault and issued a remedy via the Known Issue Rollback (KIR) mechanism.
The issue affected devices with security update KB5055528 or later installed. When attempting to update via WSUS, systems failed to download or complete the installation of Windows 11 24H2, instead generating error code 0x80240069 and logging crash reports for the wuauserv service. The disruption primarily impacted corporate environments, where WSUS is commonly used for centralized update management. Home users, who receive updates directly from Microsoft servers, remained unaffected.
WSUS has long been a trusted tool for deploying and coordinating updates within on-premises infrastructures, having been in use since the early 2000s. It grants IT administrators the autonomy to determine which updates to install and when. However, following the April updates, this mechanism ceased to function properly in distributing the new version of Windows 11.
To address the issue, Microsoft has begun automatically rolling out a fix through Known Issue Rollback. To enable the solution, administrators must apply a dedicated KIR Group Policy to systems running Windows 11 22H2 or 23H2. Once the policy is applied and the systems rebooted, WSUS will resume proper distribution of the 24H2 update. Microsoft has provided detailed configuration instructions in its official documentation.
