Earlier, Microsoft acknowledged that the KB5055523 update for Windows 11 version 24H2 had caused biometric authentication issues with Windows Hello on some devices. However, this was not the full extent of the problemβMicrosoft has now confirmed that the same update is also responsible for triggering blue screen errors (BSOD) on certain systems.
Specifically, after installing the update, affected devices may encounter a BSOD upon reboot, with the error code 0x18B βSECURE_KERNEL_ERROR,β indicating a failure within the secure kernel component.
While Microsoft has not disclosed the root cause of the issue or its future remediation plans, the company has addressed the problem using the Known Issue Rollback (KIR) technology. This system allows Microsoft to remotely revert problematic code segments. Once a device detects the newly deployed KIR policy, the faulty portions of the update are automatically removed, resolving the BSOD error without user intervention.
The KIR mechanism was developed by Microsoft to swiftly mitigate widespread system issues. Through this cloud-based strategy, Microsoft can deploy rollback instructions to Windows 11 devices. Once the system identifies the KIR update, it is silently applied in the background, requiring no action from the user.
By default, a newly released KIR policy may take up to 24 hours to reach all Windows 11 machines. However, if you are already experiencing BSOD errors, ensure your device remains connected to the internet and perform a manual reboot. A manual restart will expedite the receipt of the KIR update, allowing the issue to be resolved more promptly.