GoKawiilMicrosoft rolls out KB5124008 and KB5122880 for Windows 11 with movable taskbar
Microsoft has shipped the September 2026 Patch Tuesday cumulative updates KB5124008 and KB5122880 for Windows 11 versions 25H2/24H2 and 23H2. The update patches roughly 1,000 vulnerabilities catalogued in recent months and is mandatory, installable via Windows Update or the Microsoft Update Catalog. Since 25H2 shares its codebase with 24H2, both versions receive identical fixes and features.
GoKawiil's interpretation of the reporting above, not reported fact.
Bundling a thousand vulnerability fixes into one mandatory patch underscores how much unresolved security debt accumulates between Patch Tuesday cycles, making prompt installation important for enterprise and home users alike. The new taskbar customization options also show Microsoft continuing to iterate on Windows 11's interface well after its original release, likely in response to user feedback on flexibility and screen space.
- KB5124008/KB5122880 fix around 1,000 security vulnerabilities as part of September 2026 Patch Tuesday.
- 25H2 and 24H2 receive identical updates since 25H2 is built on the same base as 24H2.
- New taskbar options let users reposition it and shrink its size for smaller screens.
Microsoft Windows 11 Home USB Flash Drive — If you're following along with Windows 11 feature drops like the movable taskbar and Bing-free search, the official Windows 11 Home USB gets you onto the current branch that receives these cumulative updates. It's handy for clean installs or upgrading an older PC so it can keep pulling Patch Tuesday security fixes.
See Microsoft Windows 11 Home USB Flash Drive on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: bleepingcomputer.com, 2026-09-08
Published there as: “Windows 11 cumulative updates KB5124008 & KB5122880 released”
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