Microsoft: April updates trigger BitLocker key prompts on some servers

Microsoft confirmed that some Windows Server 2025 devices boot into BitLocker recovery after installing the April 2026 KB5082063 Windows security update. This update regression causes servers to require BitLocker recovery key authentication at boot, potentially disrupting business operations. Organizations running affected Windows Server 2025 systems should delay the update deployment until Microsoft releases a fix. IT administrators should ensure BitLocker recovery keys are documented and accessible, and consider implementing a staged rollout approach. Microsoft is investigating the issue and expected to provide an update or corrective patch. This represents a quality/regression issue rather than a security exploitation.

Microsoft confirmed on Tuesday that some Windows Server 2025 devices will boot into BitLocker recovery after installing the April 2026 KB5082063 Windows security update. [...]

Microsoft confirmed that some Windows Server 2025 devices boot into BitLocker recovery after installing the April 2026 KB5082063 Windows security update. This update regression causes servers to require BitLocker recovery key authentication at boot, potentially disrupting business operations. Organizations running affected Windows Server 2025 systems should delay the update deployment until Microsoft releases a fix. IT administrators should ensure BitLocker recovery keys are documented and accessible, and consider implementing a staged rollout approach. Microsoft is investigating the issue and expected to provide an update or corrective patch. This represents a quality/regression issue rather than a security exploitation. Microsoft confirmed on Tuesday that some Windows Server 2025 devices will boot into BitLocker recovery after installing the April 2026 KB5082063 Windows security update. [...] Microsoft confirmed on Tuesday that some Windows Server 2025 devices will boot into BitLocker recovery after installing the April 2026 KB5082063 Windows security update. [...]