Microsoft has released an out-of-band update to fix an issue with Surface Hub v1 devices that arose from the June Patch Tuesday updates, specifically related to KB5060533 for Windows 10 versions 21H2 and 22H2. This issue caused some Surface Hub v1 units to become inoperable, displaying a "Secure Boot Violation: Invalid signature detected" error message. Microsoft paused the update on June 11 and issued a patch a week later. The problem does not affect Surface Hub 2S and 3 models. Users have reported inconsistent success using a disk re-imaging tool, and the Surface team is investigating potential recovery methods. Microsoft is working on a solution for the affected devices and will provide updates as they become available.