Microsoft Issues Unscheduled Windows 11 Updates for Bug Fixes

On 2026-01-19, Microsoft released unscheduled updates for Windows 11 to address critical stability and network errors. Recent regular updates had caused significant operational restrictions, particularly affecting professional and administrative environments.

Security and Stability Fixes

The updates, identified as KB5077744 and KB5077797, were released after several users experienced unreliable shutdowns, hibernation failures, and authentication problems in Remote Desktop and other remote applications. In severe cases, remote login failures were reported by users.

• Microsoft released updates on 2026-01-19 to fix system operation errors.
• Users reported shutdown issues and Remote Desktop authentication failures.
• Updates affect Windows 11 versions 25H2, 24H2, and 23H2.
• Windows 10 version 22H2 and Windows Server 2025 are also covered.
• Secure Launch fixes applied to Windows 11 23H2 systems.

User Actions and Quality Assurance

The company advises affected users to install the patches promptly. A specific fix within the update addresses shutdown and hibernation issues for Windows 11 23H2 systems with Secure Launch enabled. The incident has amplified criticism regarding the quality assurance of Windows updates.

These unscheduled updates are automatically available for supported systems via Windows Update, aiming to restore operational reliability. Users in affected sectors should prioritize these updates to maintain system stability and prevent further access issues.

Update: 23 Jun 2026