Microsoft Confirms Windows 11’s KB5120998 Update is Breaking Mouse Cursors

Windows 11 Update Causes Cursor Chaos

In a recent turn of events, Microsoft has acknowledged that its optional update for Windows 11, designated as KB5120998, is causing disruptions to mouse cursor settings. The tech giant has updated its release health notes to clarify that users are experiencing alterations to their cursor personalization settings, which are reverting to default configurations after the installation of this update.

Launched on August 27, KB5120998 introduced several enhancements, including a movable taskbar and a resizable Start menu, features that many users welcomed with enthusiasm. However, the update has also inadvertently reset custom cursor settings, leading to frustrations as users find their personalized cursors replaced by an oversized default version. In some instances, adjustments to color and size fail to persist, regardless of how many times users attempt to modify them. Additionally, reports of wallpaper-related issues have surfaced, compounding the discontent among users.

“Microsoft has received reports indicating that mouse cursor personalization settings are being changed or reverted to certain standard settings. This occurs following installation of Windows updates released August 27, 2026 (KB5120998) and later.”

While not every user appears to be affected by this bug, it seems to be linked to specific hardware configurations or display scaling setups. The growing number of complaints surfacing on platforms such as Feedback Hub and Reddit suggests that this issue may be more widespread than initially anticipated.

In response to the mounting concerns, Microsoft has initiated an investigation into the matter. For those seeking immediate relief, the current workaround involves uninstalling the update via the path: Settings > Windows Update > Update History. As this update is optional, users can rest assured that removing it will not impact their access to this month’s essential security patches.

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Microsoft Confirms Windows 11's KB5120998 Update is Breaking Mouse Cursors