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Windows 11 KB5077181 Update Triggers Infinite Restart Loop on Some Devices

On Tue, Feb 10, 2026, Microsoft released the Patch Tuesday cumulative update KB5077181 for Windows 11. This update has been linked to boot failures on certain devices, where users report systems restarting repeatedly and failing to reach the desktop…

PBy Paige MonroeFeb 17, 20262 min read

On Tue, Feb 10, 2026, Microsoft released the Patch Tuesday cumulative update KB5077181 for Windows 11. This update has been linked to boot failures on certain devices, where users report systems restarting repeatedly and failing to reach the desktop interface.

The update is applicable to Windows 11 version 24H2 (OS build 26200.7840) and 25H2 (OS build 26100.7840), incorporating security fixes and quality improvements from prior releases, such as KB5074109.

Reports indicate that affected devices encounter an “infinite restart loop” post-update installation. Some users experience login-time errors related to the System Event Notification Service (SENS) and DHCP-related failures, which may disrupt internet connectivity. Installation failures have been noted with error codes 0x800f0983 and 0x800f0991, suggesting hardware or driver dependencies.

The KB5077181 update is part of Microsoft’s February 2026 security release, addressing 58 vulnerabilities, including six zero-day exploits. The update also introduces new Secure Boot certificates in anticipation of older certificate expirations in June 2026, alongside improvements for gaming eligibility checks and WPA3 Wi-Fi connectivity.

CVE-2026-21510: Windows Shell security feature bypass via malicious links CVE-2026-21519: Desktop Window Manager elevation of privilege to SYSTEM level CVE-2026-21533: Windows Remote Desktop Services elevation of privilege; zero-day exploit CVE-2026-20841: Notepad remote code execution via crafted Markdown files

On Tue, Feb 10, 2026, Microsoft released the Patch Tuesday cumulative update KB5077181 for Windows 11.
Paige Monroe · Thehackingpost

As of Tue, Feb 15, 2026, Microsoft’s official release documentation does not list a known issue regarding the restart loop. Users able to access the desktop are advised to uninstall KB5077181 through Control Panel → Programs and Features → View installed updates and pause Windows Update to prevent reinstallation.

For devices unable to boot, the Windows Recovery Environment can be accessed by interrupting the boot process three times or using installation media. In the Recovery Environment, open Command Prompt and execute the following command:

wusa /uninstall /kb:5077181 /quiet /norestart

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Following recovery, use the sfc /scannow command to repair system files if Windows displays inconsistent behavior.

For enterprise environments, it is recommended to stage deployment via WSUS or rings, validate updates on representative hardware, and monitor update compliance and boot health before a full rollout.

Based on reporting by GBHackers.

AI transparency. This article was produced with the assistance of artificial intelligence and published under human editorial oversight. AI systems can make mistakes. Read how we use AI (EU AI Act, Art. 50).
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