KB5079458


Microsoft has released cumulative update KB5079458 for Windows 11, version 25H2, intended for insiders on the Beta Channel. This preliminary Windows 11 Insider Preview Build 26220.8062 is available to Beta Channel users via the enablement package KB5066383, and now program participants will receive corresponding updates for version 25H2.

Install the update via Windows Update: go to Settings > Windows Update and click Check for updates. A computer restart is required to complete the installation.

Feature / Change Performance Impact (Speed) Optimization PC Speed Impact Gaming Optimization
Removing preinstalled Microsoft apps via policies (dynamic PFN list) 🟢 +5–15% faster boot & login on managed devices (fewer background apps) 🟢 High — frees RAM, storage, and background CPU 🟢 Improves responsiveness and reduces resource usage 🟢 +3–8% FPS in CPU-bound scenarios (less background load)
Choosing a custom profile folder name during installation ⚪ No measurable impact ⚪ No effect on system performance ⚪ Neutral ⚪ No impact
Windows driver policy update (blocks legacy cross-signed kernel drivers) 🟢 Slight improvement — fewer unstable legacy drivers 🟢 Medium — better system stability and fewer crashes 🟢 +1–3% overall stability, less BSOD risk 🟢 More stable frame times, fewer driver-related stutters
Point-in-time restore updates ⚪ No direct impact 🟡 Small — better recovery UX, no runtime speed change ⚪ Neutral during normal use ⚪ No impact
Drag Tray renamed to Drop Tray (moved to Multitasking) ⚪ No impact ⚪ Cosmetic / organizational ⚪ Neutral ⚪ No impact
Pen settings — new “Like Copilot key” option ⚪ No impact 🟡 Micro optimization for pen users (fewer clicks) ⚪ Neutral ⚪ No measurable FPS impact
File Explorer — updated context menu rollout paused 🟡 Slight — current version more stable, fewer explorer hangs 🟢 Medium — avoids performance regressions from incomplete feature 🟡 +1–2% responsiveness in File Explorer ⚪ No direct gaming impact
Other improvements — display language reliability, removed sfc /scannow extra error ⚪ No impact 🟡 Tiny — cleaner system maintenance, no speed change ⚪ Neutral ⚪ No impact

Official announcement on the Microsoft website.

The last 10 Windows updates:

Update Build Version Windows Channel Date
KB5126657 19045.7807 22H2 (ESU) Windows 10 Stable 2026-10-13
KB5126653 22631.7652 23H2 Windows 11 Stable 2026-10-13
KB5127646 28000.3231 26H1 Windows 11 Stable 2026-10-13
KB5127648 26300.9711 26H2 Windows 11 Stable 2026-10-13
KB5127757 28120.3181 26H1 Windows 11 Experimental 2026-10-07
KB5127758 26220.9606 25H2 Windows 11 Beta 2026-10-07
KB5127754 28020.3172 26H1 Windows 11 Beta 2026-10-07
KB5127753 26340.9616 26H2 Windows 11 Experimental 2026-10-07
KB5124192 28120.3151 26H1 Windows 11 Experimental 2026-10-02
KB5124196 28020.3142 26H1 Windows 11 Beta 2026-10-02