Microsoft is now testing a new Copilot shortcut that appears inside the familiar taskbar window preview—a one-click "Share with Copilot" button that sends the contents of an open app window straight to Copilot Vision for instant analysis. The feature began rolling out to Windows Insiders in early September 2024, as first confirmed in the Beta Channel build 26120.6690 and a corresponding Dev Channel build 26220.6690, both tied to KB5065786.
What's new on the taskbar
Hover over any running app icon on the taskbar, and alongside the standard preview thumbnail you will now see a "Share with Copilot" option. Click it, and Copilot launches a Vision session scoped strictly to that window's visible content. You can immediately ask questions, request a summary, translate text, or have Copilot walk you through a multi-step process using the Highlights feature.
The flow is explicit. Once you click, Copilot's glasses icon appears, indicating Vision is active. You must confirm sharing, and a stop control is always visible. Microsoft's Insider notes show the button working for Microsoft Edge, but the underlying plumbing supports other desktop applications as well. The company's design language—reusing the same glasses-icon entry point seen elsewhere—signals that this is an evolution of existing screen-sharing flows rather than a brand-new, unvetted pathway.
How Copilot Vision interprets a shared window
When you share a window, Copilot Vision processes what it sees in real time. According to Microsoft's Insider documentation, after the scan you can:
- Get an AI-generated description of any images, text, or UI elements on screen
- Summarize documents, spreadsheets, or web pages within the window
- Translate highlighted text directly inside the Copilot chat pane
- Use Highlights, where Copilot visually indicates where to click and guides you through tasks step by step
These capabilities mirror what Copilot Vision already offers when you trigger it manually from the Copilot app or a dedicated keyboard key. The taskbar button simply shaves off several clicks, making the feature more discoverable and immediate.
Who gets it—and when
The feature is experimental and gated. Microsoft's staged rollout means not every Insider will see the button right away. You need more than just the right build number. The Copilot app version matters: Vision features typically require Copilot app builds in the 1.250xx family or newer, delivered through the Microsoft Store. Server-side toggles control who actually receives the UI. There is also geographic and hardware gating—Vision features remain largely US-centric, and some capabilities may differ on Copilot+ PCs versus standard hardware.
If you want to try it today, the safest route is to join the Windows Insider Program on a non-critical device, enroll in the Dev or Beta Channel, update the Copilot app, and enable "Get the latest updates as soon as available" in Windows Update. Then hover a running app like Edge and look for the new option.
What the taskbar button means for your privacy
Sharing a window with Copilot Vision transmits screenshots or a live frame stream to Microsoft's cloud for processing. That means anything visible in the shared region—personal messages, passwords, proprietary documents—can be captured and sent. Microsoft frames the interaction as user-initiated and includes stop controls, but the UX emphasis on convenience raises the stakes. A single click, positioned right where you already interact with window previews, increases the risk of accidental sharing.
For now, treat every "Share with Copilot" tap as you would any deliberate data transfer. Use it only on windows that contain no sensitive information. When in doubt, check which app is active and scroll to hide any private content before clicking.
A step-by-step guide for Insiders who want to test
- Enroll a spare machine in the Windows Insider Dev or Beta Channel. Avoid using a daily-driver PC where unintended sharing could be problematic.
- Update Windows to at least build 26120.6690 (Beta) or 26220.6690 (Dev). Confirm that KB5065786 is installed.
- Update the Copilot app from the Microsoft Store. The version number should start with 1.250xx or higher; older versions may not include Vision hooks.
- Enable early rollout features. In Settings > Windows Update, turn on "Get the latest updates as soon as they’re available."
- Hover the taskbar. Open Edge or any other app, then hover its icon until the preview thumbnail appears. If the rollout has hit your machine, you’ll see "Share with Copilot" next to the thumbnail.
- Test deliberately. Choose a window with non-sensitive content. Click the button, confirm sharing, and try a simple query like "summarize this page" or "describe what you see." Use the stop control when done.
For IT administrators: control before convenience
The feature's arrival on Insider builds is a heads-up for organizations that manage Windows fleets. Because Copilot Vision transmits visual data to the cloud, it represents a data egress pathway that may not be covered by existing DLP rules. Until Microsoft delivers enterprise-grade controls—per-tenant audit logs, image-level DLP integration, and retention policies—the safest posture is to block or restrict Copilot app installations where the risk outweighs the benefit.
Microsoft's enterprise documentation already covers configuring Copilot via tenant policies and Group Policy. However, these controls may not yet discern between text-based Copilot interactions and Vision-based screen sharing. That means blocking the Copilot app entirely might be the only reliable way to prevent unintended screen sharing in tightly regulated environments. IT teams should add Copilot Vision to their DLP playbooks, monitor test labs for the relevant endpoints, and update acceptable-use policies to make clear what "Share with Copilot" entails before it reaches general availability.
The bigger picture: Copilot as an ambient layer
The taskbar experiment is the latest in a long lineage of Copilot injection points. Since early 2025, Microsoft has added Copilot buttons to keyboards, baked it into Paint and Notepad, placed it inside Edge's contextual menus, and offered it as a dedicated taskbar icon. The strategy is consistent: turn Copilot into an ambient assistant that sits right where the user is already working. This approach can genuinely help—debugging a settings dialog, summarizing a spreadsheet, or translating a web page becomes a one-click affair—but it also normalizes sending on-screen content to the cloud with minimal friction.
For the feature to succeed, Microsoft will need to balance that friction with transparency. Early testers and reviewers have already called for more deliberate confirmation dialogs, clearer visual indicators when Vision is active, and a published compatibility matrix so that users and admins know exactly which builds, Copilot app versions, and regions are supported. If those pieces arrive alongside wider availability, the taskbar button could become a handy productivity boost. Without them, it risks becoming yet another source of privacy anxiety and enterprise compliance headaches.
What to do now: advice for different readers
Everyday users: Treat the "Share with Copilot" button as an explicit data-sharing action, no different from emailing a screenshot. Use it only on windows containing non-sensitive information. Learn the stop control, and watch for any future updates that add confirmation prompts.
Power users and testers: Experiment in a disposable virtual machine or a secondary device. Pay attention to what exactly gets sent by monitoring network activity. Document where the feature breaks—does it work with non-Microsoft apps? With games? With modal dialogs? That feedback loop helps Microsoft refine behavior.
IT administrators: Block or stage Copilot app updates via Microsoft Store policies, AppLocker, or endpoint management until you can validate DLP controls. Add a line item about Copilot Vision to your internal security awareness training. Test the feature in a lab so you understand the egress patterns before anyone in production clicks by mistake.
Developers: The underlying Vision API may eventually open up to third-party apps. Keep an eye on Microsoft's developer documentation for any new “screen understanding” capabilities that could integrate with your own tools.
Outlook
Microsoft has not announced a public release date for the taskbar button, but the appearance in both Dev and Beta channels suggests it is on the path to broader availability. The next milestone to watch is whether the feature lands in Release Preview, which would signal that general availability is close. In the meantime, expect Microsoft to tweak the UI based on Insider feedback—perhaps adding a confirmation step or a "don't show again" option. The core takeaway is clear: Copilot is weaving itself ever deeper into Windows, and the line between your screen and an AI assistant is getting thinner. How you navigate that change starts with understanding exactly what this new button does.