Overview
- Microsoft has published optional preview update KB5089573 that delivers the Low Latency Profile plus a bundle of reliability and feature fixes for Windows 11.
- The update installs the code but activates performance features gradually via a controlled, server-side rollout so not all devices see the improvements immediately.
- Low Latency Profile briefly raises CPU frequency for about one to three seconds during shell actions to reduce UI lag, and testers report noticeably faster flyouts with lab measurements suggesting up to roughly 70% speed gains for some menus.
- Users can install the preview through Settings or the Microsoft Update Catalog and some are forcing the feature on now with the unsupported third-party ViveTool utility.
- KB5089573 also advances 25H2/24H2 to builds 26200.8524/26100.8524, refreshes Secure Boot certificates in phases, and includes fixes for Windows Hello, File Explorer, touch gestures, Task Manager and shared audio support as part of Microsoft’s wider K2 performance effort.