Windows 11 cumulative updates KB5124008 & KB5122880 released

A crucial security patch has been released by Microsoft for Windows 11, addressing over 1,000 vulnerabilities discovered in previous months. The September 2026 Patch Tuesday update is mandatory and includes fixes for bugs, adds new features, and enhances user experience across various aspects of the operating system.

The update, which can be installed through Windows Update or manually downloaded from the Microsoft Update Catalog, brings a range of improvements to Windows 11. One notable addition is the ability to customize the taskbar, allowing users to move it to different positions on their screen, such as top, bottom, left, or right side. This feature not only provides more flexibility but also maintains compatibility with other customization settings.

Furthermore, Microsoft has introduced a smaller taskbar option for devices with limited screen space, which reduces the size of taskbar icons and height while preserving essential features like Start, Search, and system tray access. The update also enhances the reliability of loading the system tray area on non-touch PCs.

The Start menu has been revamped to offer more personalization options, including the ability to choose between a small or large Start menu, as well as hiding one’s name and profile picture in Start. Additionally, the “Recommended” section in the Start menu has been renamed to “Recent,” and the settings page for Start has been redesigned with improved navigation.

Windows Search has also received significant updates, making it more dependable, easier to use, and clearer before clicking on results. The search home has been simplified, recent searches are now easily accessible, and users can choose whether web and Microsoft Store suggestions appear alongside local results.

The update also brings improvements to File Explorer, including faster and more responsive launching of File Explorer Home and support for touch scrolling in the Recommended section. Moreover, updated progress indicators have been introduced across Windows, providing a consistent and modern experience during startup, sign-in, restart, shutdown, and update installation.

For users signed in with a work or school account, the update adds the ability to discover and install relevant apps directly from the share window. While this feature is not immediately apparent, it represents an enhancement of the user experience for those who utilize their Windows device for professional purposes.

As a practical takeaway, it’s essential to ensure that your Windows 11 system receives the September 2026 Patch Tuesday update as soon as possible. This update addresses critical security vulnerabilities and adds valuable features that can enhance your overall experience with the operating system.


Source: Bleeping Computer — 2026-09-08