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

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Microsoft says the Windows 11 KB5120998 update is causing mouse cursor issues on some PCs, highlighting a fresh patch quality regression.

Quick Report

Microsoft has acknowledged that the Windows 11 KB5120998 update is breaking mouse cursors for some users, a problem that can be especially disruptive because the pointer is one of the core interaction layers on any PC. The issue appears to be tied to the latest cumulative update and is being tracked as a compatibility bug rather than a broader system outage.

The company says the problem affects a subset of devices and appears in certain configurations, with the cursor failing to render or behaving erratically after installation. That sort of regression is immediately visible to end users and can have a real productivity impact, especially for anyone relying on precision input while multitasking or editing documents.

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Source(s)

  • TPU