Microsoft Teams on Windows: Annotate content while sharing a single window

Microsoft Teams on Windows will enable annotation on a single shared application window, enhancing focused collaboration without sharing the entire desktop. Rolling out from March 2026, this default feature allows presenters and participants to annotate during meetings, with no admin setup required and existing annotation storage maintained. Introduction We’re introducing Annotations on Single Window Sharing for Windows in Microsoft Teams meetings, based on customer feedback requesting more focused and privacy‑preserving collaboration. Presenters can now annotate directly on a shared application window without sharing their entire desktop. This message is associated with Roadmap ID 555239. When this will happen: Targeted Release: Rollout begins early March 2026 and is expected to complete by mid-March 2026. General Availability: Rollout begins mid-March 2026 and is expected to complete by late March 2026. How this affects your organization: Who is affected: Users who present content in Microsoft Teams meetings on Windows Meeting participants on Windows, macOS, and mobile devices What will happen: Presenters can share a single application window instead of their full screen. Annotations can be started from the presenter toolbar during window sharing. Participants can view and contribute to annotations. The feature is enabled by default and requires no admin configuration. Existing Teams and Microsoft Whiteboard behaviors for annotation storage and access are respected. There is no change to background app visibility—notifications and unrelated windows remain private. What you can do to prepare: Additional information: No action is required. The feature will be available automatically as it reaches your tenant. Consider notifying helpdesk and end users about the new annotation capability during window sharing. Ensure presenters use the Microsoft Teams desktop app on Windows and are on a supported version. Review existing internal guidance or training materials related to Teams screen sharing and update as needed. Annotations are initiated by the presenter during single window sharing. Annotation content follows existing Microsoft Whiteboard storage and retention behavior. Presenter support is currently limited to Windows. Compliance considerations: No compliance considerations identified, review as appropriate for your organization. Message ID: MC1234561

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