Microsoft has acknowledged an issue affecting some Windows 10 and Windows 10 Enterprise LTSC 2021 systems after the installation of the May 2025 security update (KB5058379), causing devices to boot into BitLocker recovery mode. This problem arises when the update leads to multiple startup failures, preventing the system from initiating Automatic Repair without the recovery key. Users experiencing this issue may see LSASS errors and the 0x800F0845 error code in the Windows Event Viewer. Reports indicate that various devices from manufacturers like Lenovo, Dell, and HP are affected. Microsoft suggests troubleshooting steps such as disabling Intel Trusted Execution Technology, Secure Boot, Virtualization Technologies, or Firmware Protection. This is not the first occurrence of such issues, as similar problems were reported after previous updates in August 2024 and August 2022.