Cortana

Microsoft lists Cortana's Windows retirement in spring 2023 and its Teams and Microsoft 365 mobile retirement in fall 2023. Outlook mobile voice search and Play My Emails ended in June 2024.

Sources and shutdown details ↘

Personal assistants · 14 Apr 2014 – Jun 2024 · Microsoft

The record

Microsoft's voice assistant for questions, reminders, search, calendar tasks and email across Windows and Microsoft 365.

Operator at shutdown: Microsoft Company source
Launched: 14 Apr 2014Launch source
Service end: Jun 2024Closure source
Lifespan: About 10 years 2 months

Sources and verification

End of support for Cortana — Microsoft Support ↗ · Checked 13 Oct 2026

Verification notes

Shutdown: Microsoft's current support page describes Windows retirement in spring 2023, Teams and Microsoft 365 mobile retirement in fall 2023, and Outlook mobile voice search and Play My Emails retirement in June 2024. June 2024 is the final retirement month, not a single cutoff for every interface; an exact final day is unconfirmed. This record covers Cortana, not Microsoft Copilot or Windows voice access. Closure source
Dates checked: Announced 2 Jun 2023 · Verified 13 Oct 2026
AI functionality: AI functionality source
Launch: Cortana became available as a U.S. beta with the Windows Phone 8.1 Preview for Developers on April 14, 2014. The April 2 unveiling was an announcement; broader consumer availability followed later.
Location: United States · Redmond. Microsoft's 2024 annual report records its corporate mailing address in Redmond, Washington. This records the operator's historical city, not a service market or server location. Coordinates use the U.S. Census Bureau's 2024 Redmond city centroid rounded to two decimal places, not the office address. Location source · Coordinate source