restart loops Archives

Winsage

February 17, 2026

Microsoft Windows 11 KB5077181 Update Triggers Infinite Restart Loop on Some Devices

Microsoft's Patch Tuesday update, KB5077181, released on February 10, 2026, has caused significant boot failures for users of Windows 11 versions 24H2 (OS build 26200.7840) and 25H2 (OS build 26100.7840), resulting in endless restart loops. Users are reporting over 15 reboot cycles, preventing access to their desktops. Issues include System Event Notification Service (SENS) errors and DHCP problems affecting internet connectivity. Installation errors with codes 0x800f0983 and 0x800f0991 indicate potential hardware, driver, or servicing stack incompatibilities. The update was intended to address 58 vulnerabilities, including six zero-days, but the boot loop issue has overshadowed these enhancements. CVE IDs and their CVSS scores related to the vulnerabilities addressed include: - CVE-2026-21510: 7.5 - CVE-2026-21519: 7.8 - CVE-2026-21533: 8.8 - CVE-2026-20841: 7.1 As of February 15, 2026, there is no "known issues" entry in Microsoft's release notes despite user reports. Users can uninstall the update through the Control Panel if their systems are accessible, or use the Windows Recovery Environment to execute commands for uninstallation if their systems are unbootable.

Winsage

February 16, 2026

Windows 11 KB5077181 Security Update Causing Some Devices to Restart in an Infinite Loop

Microsoft's security update KB5077181, released on February 10, 2026, for Windows 11 versions 24H2 and 25H2, has caused critical boot failures, leading to infinite restart loops for users. The update addresses 58 vulnerabilities, including six zero-day exploits, and introduces new Secure Boot certificates. Users have reported errors such as “a specified procedure could not be found” and DHCP failures, with installation errors like 0x800f0983 and 0x800f0991 affecting specific hardware. To resolve issues, users are advised to uninstall the update and pause Windows Update. Accessing the Windows Recovery Environment may also be necessary for persistent boot loops. While some users experienced improvements, the overall instability highlights risks associated with updates. Microsoft has not acknowledged any known issues related to this update as of February 15.

Winsage

April 18, 2025

Windows 11 24H2 Update Bug Triggers BSOD Error

Microsoft has acknowledged a significant bug in its Windows 11 24H2 updates, causing Blue Screen of Death (BSOD) crashes with the error code “SECUREKERNELERROR” (0x18B). This issue has escalated since the April 2025 Patch Tuesday update, affecting thousands of users globally. The bug leads to system crashes after installing the updates, resulting in persistent crash-restart loops or unbootable systems. Initially reported in March 2025, the problem gained traction following the April update, prompting Microsoft to confirm the bug and investigate its cause. Other issues include failures with Windows Hello and compatibility problems with games and software, particularly on ARM-based devices. To address the crisis, Microsoft has implemented a Known Issue Rollback (KIR) to disable the problematic code, which is being automatically pushed to affected devices, although users may experience a delay of up to 24 hours. Users are advised to keep their devices connected to the internet and restart their PCs multiple times to expedite the fix. For enterprise environments, IT administrators must manually deploy a specific Group Policy update. Microsoft is working on a permanent solution, expected in a future update, while also acknowledging related issues and committing to further fixes in the upcoming May 2025 update.

Winsage

October 1, 2024

Microsoft fixes Windows KB5043145 reboot loops, USB and Bluetooth issues

Microsoft has addressed issues caused by the Windows KB5043145 preview update, which led to reboot loops, system freezes, and failures in USB and Bluetooth device connectivity. Users reported their systems either loading the Automatic Repair tool or entering BitLocker recovery mode after repeated reboots. The update caused hardware connected via USB and Bluetooth, such as keyboards and printers, to malfunction, indicated by a yellow exclamation mark under the USB Host Controller in Device Manager. To resolve these issues, Microsoft implemented a Known Issue Rollback (KIR) to reverse the problematic update and is working on integrating this fix into an upcoming Windows update. Administrators managing affected Windows enterprise devices can resolve the issue by installing the Windows 11 22H2 KB5043145 240904_041021 KIR Group Policy, which requires a system restart to apply. Microsoft has previously addressed similar issues with updates affecting Windows Server 2019 and other versions.

Winsage

September 30, 2024

Windows 11 KB5043145 update causes reboot loops, blue screens

Microsoft has issued a cautionary note regarding the September 2024 KB5043145 preview update for Windows 11, indicating that users may experience reboot loops or freezes with blue screens. The update, released to address various issues, particularly with the Edge browser and task manager, has led to reports of devices restarting repeatedly or becoming unresponsive. Some users have noted that their devices automatically open the Automatic Repair tool after multiple restart attempts, and in some cases, BitLocker recovery is triggered. Microsoft is actively investigating these issues and encourages affected users to report their experiences through the Feedback Hub. The company is also working on fixes for other known issues related to boot problems and dual-boot systems with Secure Boot enabled, which arose from previous Windows security updates.

Winsage

July 13, 2024

Microsoft fixes bug causing Windows Update automation issues

Microsoft has resolved an issue caused by the June 2024 KB5039302 preview update, impacting only client platforms in enterprise environments. To resolve the bug, admins must install and set up a KIR Group Policy targeting the affected Windows versions.

Winsage

July 10, 2024

Microsoft fixes Windows 11 bug causing reboot loops, taskbar freezes

Microsoft has resolved restart loops and taskbar problems on Windows 11 systems following the installation of the June KB5039302 preview update. The issue primarily affected systems running Windows 11 23H2 and Windows 11 22H2, with users of Windows Home edition less likely to experience it. The problem has been fixed in updates released on July 9, 2024 (KB5040442) and later.