Windows 11 May Patch Fails Due to EFI Partition Size
⚠️ Some Windows 11 devices fail to complete Microsoft’s May Security Update when the EFI System Partition (ESP) has roughly 10MB or less free, producing the rollback message "Something didn’t go as planned. Undoing changes." Microsoft suggested a registry tweak or rollback while consultants warn this leaves endpoints unpatched and undermines trust in update validation. Experts recommend resizing partitions, testing fixes, and adding ESP checks to endpoint health.
