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securitySecurity/THREATS/MED

Microsoft: April updates trigger BitLocker key prompts on some servers

sourceBleeping Computer
calendar_todayApril 15, 2026
schedule1 min read
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EXECUTIVE SUMMARY

Microsoft's April Update Triggers BitLocker Key Prompts on Windows Servers

Summary

Microsoft has acknowledged an issue where some Windows Server 2025 devices boot into BitLocker recovery mode after applying the April 2026 KB5082063 security update.

Key Points

  • The issue affects Windows Server 2025 devices.
  • The problem arises after installing the April 2026 KB5082063 security update.
  • Affected devices boot into BitLocker recovery, prompting for a recovery key.
  • Microsoft confirmed the issue on Tuesday.

Analysis

This issue is significant for IT professionals managing Windows Server environments, as it could lead to unexpected downtime and require manual intervention to recover affected servers. The problem highlights the importance of testing updates in a controlled environment before deploying them widely.

Conclusion

IT professionals should monitor their Windows Server 2025 devices closely after applying the April 2026 update and be prepared to enter BitLocker recovery keys if prompted. It is advisable to test updates in a staging environment to prevent disruptions in production systems.