What Happened
Critical Update Resolves Windows 11 Installation Failures
Microsoft has released a new cumulative update, KB5089573, for Windows 11 versions 25H2 and 24H2, addressing a critical installation failure issue that affected users following the May 2026 Patch Tuesday release. The update resolves a widely reported error that prevented many systems from completing the monthly security update, particularly on devices with limited free space on the EFI System Partition. This update was first reported by CyberSecurityNews.