Just a few days have passed since the release of Microsoft's update KB5077181 (build 26200.7840), and users are already reporting critical issues after installation. The most serious case described in Microsoft Learn concerns a seemingly endless reboot cycle — the device required more than 15 restarts to display a non-functional login screen. There are also reports of internet connection losses and installation failures.

Affected systems often display an error from the system event notification service when attempting to log in. The message states that the system could not find the specified procedure, which prevents logging in. There are also reports of complete internet connection loss due to DHCP errors and installation failures with error codes 0x800f0983 and 0x800f0991. Some users found that running the system file checker tool as an administrator (sfc /scannow) helped.
Some users managed to resolve the issue by uninstalling the update; however, Windows 11 may automatically reinstall it. A temporary pause in updates does not resolve the issue, as it is not possible to indefinitely delay the installation of the update. Users are awaiting a comprehensive solution from Microsoft.
It seems that the current update has continued the long string of problems, which arose with updates Patch Tuesday last month. After installing update KB5074109 , some users reported that PCs running version 23H2 could not shut down or enter sleep mode, while PCs running versions 24H2 and 25H2 could not log in when using remote desktop.
Windows 11 users attempting to remove the problematic update have encountered a new issue: the uninstall process fails with error 0x800f0905. Additionally, this update has caused significant slowdowns in Nvidia graphics cards. A few days later, reports emerged of issues with Outlook, Dropbox, and OneDrive following the installation of the update, which prompted Microsoft to release two emergency patches to address these critical errors.
In April 2025, Microsoft CEO Satya Nadella proudly reported, between 20% and 30% of the company's code in repositories is "written by software", that is, artificial intelligence. It is possible that the company rushed to cut back on human programmers.
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Source: 3dnews.ru
