# 'KB5124010 was a disaster on one of my Windows 11 PCs': latest update has a bug that breaks games, or worse still, the entire system going by some reports

> Microsoft has admitted there's a bug in the latest Windows 11 updateThe September preview update causes some games and apps to crashAccording to some reports, this patch is also leading to sluggish performance, or even…

- **Source:** [TechRadar](https://www.techradar.com/computing/windows/windows-11s-latest-update-has-a-game-breaking-bug-and-theres-no-fix-yet?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6ac3c2f92c64df110b9ebc34)
- **Published:** 2026-10-05
- **Category:** Laptops
- **Tags:** #microsoft #windows
- **Canonical:** http://localhost:4321/a/6ac3c2f92c64df110b9ebc34

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_GearOpen's distilled summary. The full original article is published at TechRadar (source link above); GearOpen does not republish the source's full text._