Overview
- Microsoft released the optional KB5089573 preview at the end of May and the update upgrades Windows 11 25H2 and 24H2 devices to builds 26200.8524 and 26100.8524.
- The update includes a new Low Latency Profile that briefly pushes CPU frequency for 1–3 seconds to speed core shell experiences such as the Start menu, Search, Action Center and some app launches.
- Microsoft is enabling the performance signals in staged waves from its servers so users may not see speed gains immediately after installation and results will vary by hardware.
- KB5089573 also changes Windows Hello so face or fingerprint becomes the default sign-in when set up, adds shared-audio and setup naming options, and delivers reliability fixes for File Explorer, touch gestures and Modern Standby resume.
- The release is part of Microsoft’s ongoing K2 effort to improve Windows responsiveness and is an optional, non-security preview meant for testing before wider rollout so administrators should treat it as a trial update.