BitLocker key Archives

Winsage

May 1, 2026

April KB5083769 Windows 11 update causes backup software failures

The KB5083769 security update released in April 2026 has disrupted the functionality of various third-party backup applications on Windows 11 versions 24H2 and 25H2, primarily due to issues with the Volume Shadow Copy Service (VSS). Affected applications include Acronis Cyber Protect Cloud, Macrium Reflect, NinjaOne Backup, and UrBackup Server. Users have reported receiving an error message indicating that backups have failed due to VSS timeouts. Acronis has acknowledged the issue, stating it affects both Windows 11 Pro and Home editions, and warns of potential broader system issues. A temporary solution involves uninstalling the KB5083769 update or pausing Windows updates. Additionally, Microsoft has issued out-of-band updates for critical issues affecting Windows Server systems and warned that some Windows Server 2025 devices may encounter BitLocker recovery prompts after installing the KB5082063 update.

Winsage

April 20, 2026

Microsoft releases emergency updates to fix Windows Server issues

Microsoft has confirmed that some administrators are experiencing difficulties installing the KB5082063 security update on Windows Server 2025. This month's Patch Tuesday updates have caused certain Windows servers, especially those with domain controller roles, to enter a restart loop due to failures in the Local Security Authority Subsystem Service (LSASS). Microsoft has released emergency out-of-band updates, including KB5091157 for Windows Server 2025, to address both the installation failure and the restart issues. Additionally, some Windows Server 2025 devices may boot into BitLocker recovery mode after installing the KB5082063 update. A bug affecting Windows Server 2019 and Windows Server 2022 that caused unexpected upgrades to Windows Server 2025 has also been resolved. Microsoft has issued various emergency updates throughout the year to address other issues, including a Bluetooth device visibility bug and vulnerabilities in the Routing and Remote Access Service (RRAS).

Winsage

April 16, 2026

Microsoft: April Windows Server 2025 update may fail to install

Microsoft is investigating an issue with the installation of the KB5082063 security update on Windows Server 2025 systems, where users are encountering the 0x800F0983 error code during the deployment of April 2026 cumulative updates. A service alert indicated that a limited number of servers may experience installation failures with this error. Additionally, some Windows Server 2025 devices may unexpectedly boot into BitLocker recovery mode after the update, requiring a BitLocker key, although this is unlikely to affect home users. Microsoft has also resolved a long-standing bug that caused Windows Server 2019 and 2022 systems to upgrade to Windows Server 2025 unexpectedly. Furthermore, Microsoft has released several emergency updates this year to address various security vulnerabilities, including issues with the Routing and Remote Access Service, Bluetooth device visibility, Microsoft account sign-ins, and installation challenges related to the March 2026 non-security preview update.

Winsage

April 16, 2026

Microsoft: April updates trigger BitLocker key prompts on some servers

Microsoft announced that certain Windows Server 2025 devices may experience a BitLocker recovery prompt after installing the April 2026 KB5082063 Windows security update. The recovery mode will be triggered under specific conditions: BitLocker must be enabled on the operating system drive, the Group Policy for TPM validation must be configured with PCR7, the Secure Boot State PCR7 Binding must indicate "Not Possible," the Windows UEFI CA 2023 certificate must be in the Secure Boot Signature Database, and the device must not be using the 2023-signed Windows Boot Manager. Microsoft stated that this issue is unlikely to affect personal devices, as the configurations are mainly found in enterprise-managed systems. They are working on a resolution and recommend administrators remove the Group Policy configuration before deploying the update. If removal is not possible, applying a Known Issue Rollback (KIR) is advised to prevent triggering the recovery prompt. Microsoft has previously addressed similar BitLocker recovery prompt issues in May 2025, August 2024, and August 2022.

Winsage

January 26, 2026

Your BitLocker-secured Windows PC isn’t so secure after all – unless you do this

Microsoft's BitLocker encrypts personal files on Windows hard drives to protect against unauthorized access in case of loss or theft. The BitLocker recovery key is essential for decrypting data, but Microsoft has confirmed it will comply with valid legal requests for access to these keys if they are stored in the cloud. This was highlighted during an FBI investigation in Guam, where Microsoft provided recovery keys related to a COVID unemployment fraud case. Microsoft receives about 20 requests for BitLocker keys annually, but many cannot be fulfilled if users do not store their keys in the cloud. The Guam case is the first known instance of Microsoft providing encryption keys to law enforcement, contrasting with a previous request from the FBI in 2013 that was declined. Users can choose to store their keys locally or in Microsoft's cloud, but storing them in the cloud carries risks of unauthorized access. For optimal security, it is recommended to save the recovery key on a USB stick or external drive, encrypting the file if necessary, and avoiding cloud storage. Users should check their BitLocker settings in Windows 11 or 10 to manage their recovery keys and consider removing any keys stored in the cloud.

Winsage

December 29, 2025

Windows 11’s Point-in-Time Restore: A Quiet Safety Net for When Things Go Wrong

Windows 11 Point-in-Time Restore is a recovery feature that captures snapshots of the system's state, including system files, applications, settings, and user data, allowing users to revert to a recent stable state when issues arise. It operates automatically once activated, using Volume Shadow Copy technology for comprehensive backups. The feature can quickly reverse changes made within the last 72 hours, addressing problems like faulty driver installations without requiring a complete reinstallation of Windows. However, it has limitations, such as storing restore points locally for a maximum of 72 hours, not recovering long-deleted files, and requiring significant storage space. To enable it, users must use ViveTool to unlock the feature, configure settings for snapshot frequency and retention, and access restore options through the Windows Recovery Environment if needed. It is particularly useful for casual users who frequently modify their systems but may not suffice for power users needing comprehensive backup solutions.

Winsage

November 6, 2025

Windows security update triggers BitLocker recovery in some systems — bug mostly impacts Intel PCs with Modern Standby support

Microsoft has issued a service alert regarding the October 2025 Windows security update, warning that it may trigger BitLocker recovery on certain systems, specifically those running Windows 11 versions 24H2 and 25H2, as well as Windows 10 version 22H2. Affected devices may boot into the BitLocker recovery screen after installing updates released on or after October 14, 2025, requiring users to enter their recovery key. Similar issues have occurred in previous updates in May 2023, 2024, and 2022. Users should verify if BitLocker is enabled and retrieve their recovery key from their Microsoft account if needed. BitLocker is a security feature that protects data but can complicate access to local accounts if activated unexpectedly.

Winsage

May 18, 2025

Microsoft Confirms New Update Locks Windows 10 — Or Worse. Here’s What To Do

Windows 10 users are facing issues due to the mandatory KB5058379 update, which has caused some PCs to boot into Windows Recovery mode and prompted the need for a BitLocker key. Some users have also experienced a Blue Screen of Death (BSOD). The update primarily affects devices with Intel Trusted Execution Technology (TXT) using 10th generation or later Intel vPro processors, particularly on Windows 10 versions 22H2 and Windows 10 Enterprise LTSC 2021. Microsoft is working on a resolution and plans to release an Out-of-band update soon. Affected users are advised to disable Intel TXT in the BIOS to complete the update successfully and avoid further issues. Windows 11 is not impacted by this problem.