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KB5067115 is the October 31, 2025, Windows 11 Insider Preview update that installs build 26220.7051 for the Dev and Beta Channels. Microsoft based the 26220.xxxx builds on Windows 11 version 25H2 through an enablement package. The flight previewed four notable experiences—Ask Copilot in the taskbar, handheld full-screen mode, shared audio, and expanded Prism emulation support—alongside fixes and several unresolved Start, notification-center, system-tray, and dark-mode dialog issues. It was an experimental Insider build, not a current release recommendation.
What KB5067115 is
Microsoft announced Windows 11 Insider Preview Build 26220.7051, identified as KB5067115, on October 31, 2025, for the Dev and Beta Channels. Microsoft says the 26220.xxxx builds are based on Windows 11 version 25H2 via an enablement package. The build number identifies this particular preview flight; it should not be confused with a general-availability update for all Windows 11 PCs.
Features in an Insider build are subject to change, removal, or cancellation before wider release. As announcement author Amanda Langowski put it: “Features and experiences included in these builds may never get released as we try out different concepts and get feedback.”
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What changed in build 26220.7051
Ask Copilot in the taskbar
Microsoft introduced an opt-in experience that can suggest apps, files, settings, and Copilot chats as a user types. To enable it, open Settings > Personalization > Taskbar > Ask Copilot. Microsoft says the experience uses existing Windows APIs to find apps, files, and settings and does not give Copilot access to personal content. Availability was rolling out gradually, so the option might not appear for every Insider at once.
#1 Best Overall
- 1.1 GHz (boost up to 2.4GHz) Intel Celeron N5030 Quad-Core
Full-screen experience for handheld PCs
The release expanded the console-style full-screen experience to additional Windows 11 handhelds. Microsoft listed the ASUS ROG Xbox Ally and ROG Xbox Ally X as available, with a rollout to MSI Claw models beginning. On a supported device, open Settings > Gaming > Full screen experience and select Xbox as the home app.
Shared audio on supported Copilot+ PCs
Microsoft began a gradual preview rollout of shared audio using Bluetooth LE Audio broadcast technology. The feature lets users connect two supported, paired accessories through a tile in Quick Settings. It requires a compatible Copilot+ PC and supported accessories; the announcement does not establish compatibility with every Bluetooth device.
Rank #2
- 256 GB SSD of storage.
- Multitasking is easy with 16GB of RAM
- Equipped with a blazing fast Core i5 2.00 GHz processor.
More x64 features in Prism on Arm
The update enabled an emulator change that adds support for more x64 CPU features when x64 applications run under emulation on Windows on Arm. Microsoft said this support applies by default to x64 applications. A 32-bit x86 application can opt in through its application Properties emulation settings.
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Microsoft listed fixes and improvements affecting the following areas:
Rank #3
- 14" diagonal, 1366x768 resolution, HD BrightView LED, Glossy NON-TOUCH Display
- An underlying issue that could leave USB keyboards or other devices unusable for some Insiders.
- Start menu folders that could become invisible.
- File Explorer responsiveness and launch time.
- An incorrect context-menu icon for some executable file types.
- Desktop icons moving during file interaction.
- A memory leak involving lock-screen slideshows.
- Slow first sign-in on a newly created account.
- Overlapping text in Settings search.
- Screen-reader announcements and text rendering in multiline boxes.
- Protected-content playback and Ethernet upload speeds.
Known issues Microsoft documented
Start and notification center
Some Insiders could find that clicks on Start did not work, although pressing the Windows key could still open the Start menu. Microsoft also noted a possible impact on the notification center.
Missing system-tray apps
Some users could see apps missing from the system tray. The announcement identifies this as a remaining issue but does not give a universal workaround.
Rank #4
- EFFORTLESS EVERYDAY PERFORMANCE: Powered by Intel Celeron N4020 processor and Windows 11 Home system, delivering reliable, low-power efficiency for daily tasks like document editing, email, online classes, and web browsing
- 15.6-INCH FULL HD DISPLAY: Enjoy immersive visuals on the 15.6" FHD (1920x1080) anti-glare screen with micro-edge bezels. Delivers clear details and comfortable viewing for long study sessions, working on spreadsheets, and video playback
- RESPONSIVE MULTITASKING & STORAGE: Built with 4GB LPDDR4 RAM and 128GB eMMC storage for smooth daily essential use. Expand your storage by up to 1TB via the integrated TF card slot to easily store movies, photos, and working files
- ADVANCED CONNECTIVITY: Outfitted with 2x Full-Featured Type-C ports for data transfer, fast charging, and dual-monitor output, alongside 2x USB 3.2 Gen1 ports and a 3.5mm audio jack for complete peripheral compatibility
- LIGHTWEIGHT & SILENT OPERATION: Slim and portable for effortless travel or commuting. Features a 1MP HD webcam for remote meetings, 38Wh battery with 45W Type-C fast charging, and a fanless silent design for peaceful work environments.
Dark-mode copy dialogs
Copy dialogs in dark mode could display problems with progress indicators, scrollbars, footers, or text scaling. These were known issues in the flight, not evidence that every user or copy operation would be affected.
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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesWhy the features might not have appeared
Microsoft used Controlled Feature Rollout for many features, improvements, and fixes, initially enabling them for subsets of Insiders. In Windows Update, the Get the latest updates as soon as they’re available toggle could make a user eligible earlier. With the toggle off, features were set to arrive gradually when ready. Turning it on did not guarantee immediate access, because availability also depended on the staged rollout and, for some features, compatible hardware.
Best Value
- 【Efficient Performance】 Powered by Intel Core i3 processor (2 cores, 4 threads, up to 3.4GHz) with 12GB RAM and 256GB SSD. Handles multitasking, office software, online classes, and HD video streaming smoothly. Integrated Intel UHD Graphics 620
- Backlit Keyboard & Complete Package】Comes with a cool backlit keyboard. Comes with awebcam, dual stereo speakers (8Ω/1.0W each), DC charger, and user manual – ready for late-night studying, online classes, video conferencing, and daily productivity
- 【Vibrant Display】 15.6-inch Full HD (1920x1080) anti-glare screen with 16:9 aspect ratio delivers crisp images and vivid colors – perfect for studying, watching lectures, or entertainment. Thin-bezel design maximizes viewing area
- 【Fast Connectivity & Expansion】 Equipped with WiFi 6 (802.11ax) and Bluetooth 5.2 for stable, high-speed wireless. Features 3 x USB 3.0, HDMI 2.1, Type-C (supports PD3.0 fast charging), and a TF card slot expandable up to 2TB – easily connect external monitors, mice, drives, or expand storage for all your files
- 【Long Battery Life & Portable】 Built-in 11.55V 5000mAh/57.75Wh high-capacity battery delivers approximately 7 hours of mixed-use battery life – enough for a full day of classes and assignments. Lightweight at just 1.63kg (3.6 lbs) and 19.5mm thin, plus a compact packing size – easily slips into a backpack for campus, library, or coffee shop
The four previews were not universal PC features: Ask Copilot was opt-in, handheld full-screen mode depended on a supported handheld, shared audio required compatible Copilot+ PC and Bluetooth LE Audio hardware, and the extra Prism support concerned Windows on Arm emulation.
Dev and Beta Channel context
At the time of this flight, Microsoft offered Dev Insiders a temporary opportunity to switch to Beta while both channels received the same 25H2-based updates. Microsoft said the window would close when the Dev Channel advanced to a higher build number. A further shared Dev/Beta build announcement followed on November 7, 2025, so 26220.7051 was not the final flight in the series.
As with other Insider previews, channel membership meant testing software that could still change; it did not make the build a recommended stable release. Microsoft’s announcement warned that features might not ship beyond the Insider program.
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