‘Nightmare’—Microsoft Update Breaks Windows For Millions

January has become a nightmare for millions of Windows users, as Microsoft’s latest January update creates a surprising raft of issues. We have seen multiple emergency updates. But serious problems remain. And there’s no firm timeline on fixes.

“This year’s first mandatory Windows 11 update is a mess,” Windows Latest warns. Users keep reaching out “to share their nightmare experience,.” For those unaware, "this update is a mandatory security patch, so it’s going to attempt installation whether you like it or not.” And that makes failures unavoidable.

Three of the issues have been acknowledged by Microsoft. The Classic Outlook freezing bug, the Remote Desktop Bug, and the failure to shutdown bug. “But it doesn’t look like there were only three issues that needed Microsoft’s attention.”

Microsoft is looking into an issue with desktop.ini that likely means it will be fixed soon. But there’s also a new sleep state issue that is garnering increasing user complaints. This preserves battery and power, but the issue is PCs are not falling asleep as planned.

Windows Latest says “there’s a regression bug in Windows 11 25H2 on the desktop S3 sleep path. Even with hybrid sleep and wake timers disabled, the system-level Maintenance Activator (SystemEventsBroker) does not properly clear the maintenance wake context after the first wake, causing the second sleep to wake immediately.”

All users are advised to watch for additional emergency out-of-band updates to fix outstanding issues. Some may await February’s updates, which means installing it as soon as available. Not great, but unfortunately not that unusual.

“We’re monitoring reports of other problems in the January 2026 update,” Windows Latest says, “including a bug where the keyboard and mouse do not work correctly. The list of reported issues keeps growing, which is concerning, as Windows 11 had more than 20 major problems in 2025 with just 12 security updates.”

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