Windows 11 Dev Channel Build 26200.5761: Copilot tweaks, UI polish, and reliability fixes

Microsoft has released a fresh Dev Channel drop for Windows Insiders — Windows 11 Insider Preview Build 26200.5761 (KB5064093) — a compact cumulative update that continues the platform’s steady cadence of UI polish, Copilot-era tweaks, and reliability fixes while keeping several features gated behind staged rollouts and Copilot+ hardware requirements. oev Channel** receive early, exploratory builds (the 26200 series is the active stream for the 25H2 enablement package), intended for fast feedback and iterative testing. These Dev builds often mix visible user-facing refinements with under-the-hood stability work and controlled feature rollouts that may be enabled per-device by Microsoft. Insiders should expect variance: two machines on the same build can show different features depending on server-side flags and toggles.
This release follows the pattern Microsoftelopment cycle: incremental, targeted improvements that add up to a smoother daily experience rather than a single major feature milestone. The company couples these updates with app-level releases (Snipping Tool, etc.) and hardware-gated Copilot experiences that require specific NPU-enabled Copilot+ machines for local AI acceleration.

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What’s new in Build 26200.5761 (KB5064093) — high-level summary​

• Continued tnomics and stability fixes for Copilot-driven actions.
• Snipping Tool receives a “window-mode” recording option (app-specific recording area) in a companion app update.
• Smalplorer and Taskbar** polish items (context-menu icon treatment, hover animation smoothing, pin persistence fixes).
  ross DWM/Windowing, Live Captions, and shell components to reduce crashes and regressions.
• Enterprise-friendly controls: admins can remove selectore apps via Group Policy / MDM CSP on Enterprise and Education devices.

These are iterative improvements — smallllectively aimed at making day-to-day tasks feel more fluid across touch, pen, and traditional mouse/keyboard workflows.

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Deep dive: features and Do — better selection, improved stability​

Click to Do, Microsoft’s lightweight on-screen assistant tied to Copilot workflows, receives expanded selection modes to make mixed-content c pen and touch devices.

• New selection modes:
• Freeform Selection — draw an arbitrary shape to capture mixed entities (text, images, UI elements).
• Rectangle Selection — classic drag-to-select a rectangular area.
• Ctrl + Click — multi-select disparate items with keyboard+mouse.

Why it matters: these modes address a longstanding friction point for hybrid-content workflows — note-taking, quick summarization, and one-shot edits — especially on Surface and other pen-capable hardware. The update also contains fixes for known Click to Do carlier 26200 flights, improving reliability for Insiders who use these AI actions.
Caveat: some advanced Click to Do actions remain hardware-gated for Copilot+ PCs with on-device NPU acceleration; behavior and availability are staged via server-side flags. Validate whether the local processing is used or whether content is routed to cloud endpoints for particuling on Click to Do for sensitive data.

Snipping Tool — window-mode screen recording​

The Snipping Tool app (shipping as a separate app update) includes a Window recording mode in its recorder UI. When selected, recordings are sized to a chosen app window and the captured area remains fixed for the duration of the recording. This prodrgeted to a single application window.
Practical implications:

• Pros: great for short demos, troubleshooting recordings, and app-specific step-throughs without post-crop work.
• Cons: the recording is fixed — it won’t follow a moved app, and it won’t capture if the window is covered. Treat this as preview-quality and test capture scenarios (presentations, multi-using it in critical recordings. Community feedback has flagged edge cases (overlay/dimming behavior, recording length oddities) in early insider rollouts.

File Explorer and context-menu polish​

A subtle visual tweak to File Explorer’s Open with context menu removes the accent-colored backplate for packaged-app icons, making icons larger and more legible across themes and mixed icon packs. This may appear minor, but it improves scanability and reduces visual clutter in everyday file operatiode color fixes and Home view reliability improvements are included in this wave.

Taskbar, Start, and animation refinements​

Microsoft continues to tighten the shell’s perceived performance: hover animations for app groups on the taskbar are smoothed, a pinned-app unpinning regression has been fixed, and Start menu layout regressions addressed. These refinements reduce micro-stutters and small UX annoyances that compound over long sessions.
ility work
This build bundles targeted fixes for:

• DWM crashes and rendering stability.
• Live Captions crashes during live translation on Copilot+ PCs.
• Click to Do crash regressions introduced in prior flights.

The focus is clean: reduce regressions introduced by rapid Dev-channel iteration and make the base shell more robust for feature testing.

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de caveats​

Several recurring known issues persist in recent 26200-series flights and are explicitly called out as risks for Insiders who install this update:

• Install rollback with error 0x80070005: some Insiders may see the update reverwith a permissions-style error. Microsoft suggests using Settings > System > Recovery > “Fix issues using Windows update” as an immediate remediation while a permanent fix is developed. If you manage production or critical lab devices, postpone Dev Channel upgrades until the issue is confirmed resolved.
• Visual Studio/WPF crashes on Arm64: reports show Visual Studio crashing in WPF-dependent scenarios on Arm64 after recent Dev flights. Developers using Arm64 machines should test workloads thoroughly before adopting this flight.
• Device- and region-specific problems: Xbox controller Bluetooth bugchecks, Recall (snapshot feature) behavior in the EEA, and Snipping Tool edge cases have been reported on a subset of machines. These nature.

Important operational guidance: snapshot or image your test devices before installing; create rollback plans and use segmented pilot rings rather than broad Dev Channel pushes.

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Cross-channel and KB mapping nuanc​

Community archives and reporting have sometimes shown ambiguity in mapping KB numbers to build identifiers across channels. For example, the label KB5064093 appears in community reporting mapped to Build 26120.5761 (Beta Channel) in some posts, whilattribute the same KB label to 26200-series Dev Channel updates in parallel distribution weeks. This can create confusion for administrators who track exact KB→build relationshipsange control. When exact KB/build mapping is material to deployment plans, verify against Microsoft’s official KB documentation or Update Catalog entries before updating production images.
Flag: any community-sourced KB→build mapping should be treated as provisional until confirmed by Microsoft’s official release notes or the Update Catalog.

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Enterprise and IT considerations​

Enterprises and IT admins should treat Dev Channel builds as evaluation-only for lab and pilot environments. Specific items to include in a test and rollout plan:

• Backup & snapshot strategy:
• Create a full VM snapshot or disk image before upgrading test machines.
• Maintain rollback images and documented restore steps for rapid recobalidate developer tools (Visual Studio, WPF scenarios) on x64 and Arm64 target hardware.
• Test critical line-of-business apps against the new shell behavplorer context menus).
• Feature gating and telemetry:
• Expect feature variance — controlled feature rollouts may deliver functionality to a subset of devices. Do not assume uniform behavior across a fleet.
• Device and peripheral validation:
• Test Bluetooth peripherals (Xbox controllers) and media workflows that have surfaced as fragile in recent flights.
• Policy and provis Policy/MDM CSP options allow removal of selected built-in Store apps on Enterprise/EDU images — incorporate these settings into provisioning images where appropriate to reduce bloat and attack surface.
• Communication & help-desk prep:
  ms on likely symptoms (rollback error 0x80070005, Snipping Tool recording quirks) and provide documented mitigations to speed triage.

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Testing checklist for Insiders and power users​

shot or full disk image of your test device.

• Install the update in a lab ring; opt-in only a small pilot group.
• Validate critical developer pat apps, build/CI workflows (especially on Arm64 if you use it).
• Test Click to Do flows for both cloud-routed and locally processed actions; confirm which actions run locally on Copilot+ hardware.
• Record Snipping Tool window-mode scer usage (presentations, demos) to confirm behavior meets requirements.
• Track Windows Update history and be prepared to use Settings > System > Recovery > “Fix issues using Windows updat05 rollback symptoms.

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Strengths — what Microsoft is getting right​

• Focused, user-visible polish: Small UI tweaksarity, Taskbar animation smoothing) are simple to implement but compound inxperience. These changes reduce daily friction for both power and casual users.
• Productivity-first AI ergonomics: Enhancs selection tooling reflect a pragmatic understanding that AI workflows require better input affordances on touch and pen devices. Freeform ns make multi-entity capture practical.
• Enterprise-friendly controls: The ability to remove certain built-in Store apps via policy ise hygiene and managed deployments.
• Incremental stability work: Fixes targeting DWM, Live Captions, and Click to Do regressions address real pain points introducedn. This shows Microsoft is balancing feature velocity with reliability.

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Risks and open questions​

• Channel volatility: Dev Channel builds are experimental and may introduce regressions. The presence of install rollbacks and platform-specific crashes underscores the risk of using these build testing rings.
• Hardware gating complexity: Copilot+ features are staged and often require specific NPU-enabled hardware. This creates a two-tier experience where only a subset of users see the full AI-driven value proposition. Enterprises must plan accordingly. ild mapping: Community reports show occasional discrepancies between KB numbers and channel build identifiers. This complicates change control for regulaays verify against Microsoft’s official KB/Update Catalog.
• Incomplete documentation on privacy/telemetry for AI actions: While Microsoft has emphasized on-device processing for certain Copilot+ capabilities, public technietry, encryption, and cloud fallbacks remains sparse in preview notes. Treat AI-assisted workflows cautiously for sensitive data until explicit documentation is published.

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What to watch next​

• Widening of Click to Do and Recall feature availability as staged clearer documentation around which actions run locally vs. in the cloud.
• Snipping Tool improvements and quality-of-life bugfixes as the app matures beyond preview behavior.
• Official KB mapping confirmation from Microsoft (Update Catalog / Mir any KB→build ambiguity for IT change control.
• Continued stability fixes for Arm64 developer scenarios and Bluetooth controller edge cases. These will be critical for developers and gamers using Windows on diverse hardware.

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Conclusion​

Build) is emblematic of Microsoft’s current Windows 11 Dev Channel strategy: steady, iterative refinements that prioritize productivity and perceived polish while continuing to test AI-first interactions under controlled rollouts. For Insiders and power users, this flight offers meaningful, practical improvements — notably in Click to Do selection ergonomics and workflows — while also carrying the expected Dev Channel caveats: installation rollbacks, hardware-gated behavior, and device-specific regressions.
Organizations and cautious users should conf rings, snapshot and backup before installing, and verify critical workflows (developer tools, peripheraing scenarios) before wider deployment. When exact KB/build mapping matters for compliance, confirm with Microsoft’s official release documenying on community reporting.
This update continues the pragmatic, incremental approach Microsoft has used to shepherd Windows 11 toward a more AI-aware, device-aware future — usewith a clear pathway to broader platform capabilities as staged features mature and stabilize.

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Source: Microsoft - Windows Insiders Blog Announcing Windows 11 Insider Preview Build 26200.5761 (Dev Channel)