Windows 11 Update KB5077181 Triggers Boot Loop Nightmares for Users

A quiet update release from Microsoft has spiraled into a tech support crisis for many Windows 11 users. Just days after the company pushed out KB5077181, reports have exploded across forums and social media describing a critical flaw: affected machines are stuck in endless restart loops, unable to boot into the operating system at all.

The update, which was intended to bring improvements to both Windows 11 24H2 and 25H2, is now being blamed for rendering systems unusable immediately after installation. For some, the loop is accompanied by a SENS (System Event Notification Service) error, indicating that the OS cannot properly interact with essential background services—often due to missing configuration data or network connectivity issues. Others are confronted with cryptic error codes like 0x800f0983 and 0x800f0991, which typically point to problems with servicing stacks or corrupted update components.

Even more puzzling are reports of DHCP failures, where Windows claims there’s no internet connection or an invalid IP address—despite the machine being fully connected. These inconsistencies suggest the issue isn’t isolated to a single subsystem but may involve deeper conflicts between the update and system-level services.

Microsoft has yet to acknowledge the problem publicly, and KB5077181 is not listed among known issues in the official support documentation. That silence has left users scrambling for workarounds. Some have managed to access recovery mode and attempt system resets, though results vary widely—many find themselves back at square one after multiple tries.

For those who can still access their desktops, the immediate fix is to uninstall the update manually. This can be done through Control Panel > Programs > View Installed Updates, locating KB5077181, and removing it. However, that’s only half the battle. To prevent Windows from re-downloading and reinstalling the problematic patch, users must also pause automatic updates via Settings > Windows Update > Pause Updates. Failing to do so risks the update being reapplied during the next system check, potentially triggering the boot loop all over again.

This incident underscores a growing frustration among Windows users: updates that break more than they fix. While Microsoft’s rapid release cadence aims to keep systems secure and feature-rich, the collateral damage from flawed patches can be severe—especially when recovery options are limited and official support is slow to materialize.

As the community awaits a formal fix, the best advice remains cautious: delay installing KB5077181 until Microsoft addresses the boot loop issue, and ensure you have a recent system restore point or backup before applying any major updates.

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