Serious issues with Windows 11 are affecting millions of computers. Another patch has failed!

Windows 11 has stumbled again, and the latest update only confirms that some of the issues have been dragging on for months. Problems that arose earlier in version 24H2 have also carried over to 25H2 — and not by chance. Both editions utilise the same codebase and the same service branch, as Microsoft officially confirms.

However, the most important thing is how these bugs manifest in practice. They hit the very foundations of the user interface. XAML-based applications — such as the start menu, file explorer, search, taskbar, or system settings — can operate unpredictably, freeze, or launch with noticeable delays.

Problems persist from update to update

The October patch (KB5066835), intended for Windows 11 25H2, did not resolve these issues. Worse still, the next one — KB5070311 — also did not bring any improvements. This means that Microsoft is battling errors at the system architecture level, rather than at the level of a single component.

Who is affected?

According to Microsoft, primarily corporate and managed environments. That’s where UI issues occur most frequently and in the most severe form. Home users — at least according to the official narrative — are said to experience them rarely, although the giant from Redmond does not rule out that problems may also occur on regular computers.

A temporary workaround is to restart the process SIHost.exe, which is the shell infrastructure host responsible for interface elements.

System that a billion devices still don't want to use

Errors have always occurred — it's a natural part of software development. The problem is that they concern the fundamentals of how the operating system works, which makes them particularly bothersome. And when we add the fact that Windows 11 still struggles to win over users — while a billion computers continue to run on Windows 10 — it becomes clear that Microsoft needs to deliver more than just cosmetic fixes.

For now, however, it seems that the latest patches are more about putting out fires than genuinely improving the system's stability.