Unexpected BitLocker Recovery Mode Issues Affecting Windows Users
Microsoft is currently addressing a peculiar issue that has emerged, predominantly impacting users of Intel-based PCs. Those operating on Windows 11 versions 25H2 and 24H2, along with certain Windows 10 users, may find themselves unexpectedly thrust into BitLocker recovery mode. This situation arises despite the fact that BitLocker typically only requests the recovery key when there have been alterations to the system configuration.
The core of the problem lies in a newly identified bug that prompts users to enter their recovery keys without any preceding changes to their systems. BitLocker, which employs AES encryption by default, is designed to secure the entire drive volume, thereby safeguarding data even in scenarios where the device is lost, stolen, or improperly decommissioned.
According to a Microsoft document intended for Microsoft 365 Business and Windows 11 Enterprise licensees, “After installing Windows Updates released on or after October 14, 2025 (the Originating KBs listed above), some devices might encounter issues during restart or startup.” This statement highlights the specific Windows 11 25H2 and 24H2 versions affected by the update KB5066835, as well as Windows 10 version 22H2, which is impacted by the originating ID KB5066791.
A noteworthy aspect of this issue is its potential connection to the Connected Standby feature, a power-saving mechanism integrated into the Windows OS since the launch of Windows 8. This feature allows PCs to maintain network connectivity while in standby mode, enabling notifications and music streaming without significant battery drain. It was initially developed to enhance battery life on laptops by facilitating a low-power state.
Microsoft has indicated that primarily Intel-based systems are experiencing these difficulties. While a detailed explanation remains elusive, the issue may stem from the interaction between Intel CPUs and the power states managed by Windows. In response, Microsoft is gradually rolling out a fix, likely planning to deliver it as another enablement package update to rectify the situation.
The October update has already been linked to several complications, and the forthcoming package will need to address a multitude of issues. Additionally, it has been reported that this update caused three Azure-hosted virtual desktops running build 24H2 to become stuck at the recovery prompt, rendering them inaccessible to remote users.
For users relying on BitLocker, it is advisable to back up your recovery key and ensure that the latest Windows updates are applied. This precaution will help mitigate the risk of being unexpectedly prompted for the key in the future.
