Windows Server Update Services buckle under Microsoft's metadata mountain

Microsoft's Windows Server Update Services (WSUS) is experiencing severe performance issues due to a buildup of publishing metadata, causing synchronization delays and timeouts. Microsoft has deployed a mitigation for new installations but lacks a solution for existing servers, advising organizations to transition to cloud-based alternatives. The problem began impacting systems on July 13, 2026, and affects a wide range of supported Windows operating systems.