Microsoft rolls out Windows 11 KB5089573 update that makes your PC genuinely faster and more responsive
Microsoft has released Windows 11 update KB5089573, now available as an optional non-security preview update for May 2026. The update marks a significant shift in Microsoft’s approach to Windows 11 improvements, focusing on user experience and system performance rather than security patches alone.
The update introduces notable performance enhancements designed to make Windows 11 feel faster and more responsive overall. According to Microsoft, KB5089573 delivers quality-of-life improvements and foundational OS optimizations that aim to address some of the top criticisms users have leveled at Windows 11 since its launch.
Notably, this update represents the first major OS release under Microsoft’s “Windows K2” initiative, a company-wide effort focused on addressing user concerns and criticizing the operating system while improving system reliability. The K2 effort signals Microsoft’s acknowledgment that Windows 11 requires substantial optimization work to meet user expectations, particularly around performance and responsiveness.
As an optional preview update, users can choose to install KB5089573 independently rather than waiting for a mandatory security update. This approach allows Microsoft to gather user feedback and performance data before rolling the improvements into subsequent standard releases.
The release comes as Microsoft continues to refine Windows 11, which launched in late 2021. The focus on performance improvements through dedicated initiatives like Windows K2 suggests the company is prioritizing user satisfaction and system optimization as key areas for development going forward.