Cortana Statistics By User Adoption And Trends (2026)

Introduction

Cortana Statistics: Microsoft Cortana is a virtual digital assistant developed by Microsoft and first introduced in 2014 for Windows Phone before expanding to Windows PCs, Xbox, and mobile platforms. The assistant was designed to help users perform tasks such as scheduling meetings, setting reminders, searching the web, and controlling applications through voice commands.

By 2025, Cortana will have transformed from a consumer voice assistant into an enterprise productivity tool that works together with Microsoft 365 and Teams. Microsoft has developed advanced AI assistants, which include Microsoft Copilot as the new system that performs numerous functions that Cortana used to provide in Windows operating systems.

This article presents Cortana statistics for 2025, including user numbers, market trends, enterprise adoption, revenue impact, and industry research insights.

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• Microsoft launched Cortana as a digital assistant for Windows Phone in 2014 and later brought it to various other platforms.
• Microsoft discontinued all support for Cortana on Windows 10 and Windows 11 operating systems on August 11, 2023.
• Microsoft 365 now serves more than 450 million paying business customers who use its services throughout the world, according to fiscal year 2026 data.
• Microsoft 365 Copilot achieved 15 million paying customers, which marks a 160% increase in users compared to the previous year.
• Only 3.3% of Microsoft commercial customers currently use Copilot, which shows that there is significant room for future growth.
• The monthly user fee of USD 30 for Copilot will produce an estimated annual revenue of USD 5.4 billion.
• Microsoft dedicated USD 37.5 billion to capital expenditures during one quarter to enhance its AI infrastructure and data center operations.
• The majority of the total investment, which amounts to approximately two-thirds, will be used to purchase GPUs and CPUs that support extensive AI processing needs.
• GitHub Copilot achieved more than 4.7 million paid subscribers in Q2 FY2026, which represents a 75% increase compared to the previous year.
• Cortana operated during a time when approximately 500 million devices used Windows 10 worldwide.
• Office 365 had 100 million active business customers who used its services every month during the early period when Cortana launched.
• 90% of Fortune 500 companies use Microsoft cloud services for their business operations.
• The Copilot ecosystem shows 33 million active users who use Microsoft AI platforms.
• Around 20 million users across the world interact with Microsoft 365 AI tools every week.
• Cortana’s voice assistant services provided support to only 13 countries, which restricted its international market reach when compared to rival voice assistants.

The Sunset Of Cortana – Why Microsoft Shifted To Copilot

• The sunset of Cortana demonstrates Microsoft’s artificial intelligence evolution because this change shows how voice assistants and traditional natural language processing systems transformed into modern AI systems that use large language models.
• Microsoft declared its final support for Cortana as a separate Windows application in June 2023, which resulted in the complete operational shutdown of the software by August 11 2023, through an update that replaced its original interface with a deprecation warning that guided users to new AI productivity solutions.
• Microsoft Teams mobile, Teams Displays, and Teams Rooms enterprise platforms, later in 2023, would lose their Cortana support, which included all desktop systems, Microsoft Teams platforms, and Microsoft Teams Rooms.
• Microsoft Outlook mobile retained its “Play My Emails” feature until its scheduled shutdown, which occurred after the temporary period.
• The rapid decline of traditional AI assistant technologies shows how quickly generative AI systems with advanced reasoning, contextual comprehension, and content creation abilities have become the new standard.
• Cortana Technology built its system from voice-command recognition and intent-matching NLP systems, which restricted its functions to perform essential operations that included weather checks, reminder functions, and calendar inquiries.
• The release of ChatGPT to the public in December 2022 changed how people thought about AI assistants because it introduced a system that enables users to converse with it for document summaries, text creation, and natural language explanation of complex information.
• Microsoft Copilot was developed in response to the need for AI technology that uses GPT-4 and Microsoft Graph as its core components.
• This system enables Copilot to examine user email messages, document files, calendar events, and chat conversations, which enables it to perform advanced functions that include creating summaries of 40-page legal agreements, writing business emails, and producing PowerPoint slides from Word document content.
• The commercial scale of this transformation is substantial. Microsoft announced during its Q2 FY2026 earnings call that Microsoft 365 now has over 450 million paid commercial seats, which the company supports worldwide.
• The 15 million users who adopted Microsoft 365 Copilot represent a 160% growth rate from the previous year. Analysts predict that Copilot will generate about USD 5.4 billion in annual revenue based on its list price of USD 30 per user each month.
• Microsoft has the potential to grow because only 3.3% of its commercial users have adopted Copilot.
• Microsoft spent USD 37.5 billion on capital expenditures during one quarter to meet AI requirements and allocated about two-thirds of that amount to purchase GPUs and CPUs, which support extensive AI operations in cloud data centers.
• The company expands its artificial intelligence system through partnerships with Anthropic, which provides the Claude model together with GPT-4 for its enterprise clients to use multiple AI models.
• The introduction of agentic AI marks the most significant advancement because Copilot now operates as an independent system instead of functioning merely as a voice-activated assistant.
• New Researcher and Analyst agents use their new capabilities to perform multiple steps through their workflow processes while they study data and create reports, and bring about automation of their work tasks, which they perform in Excel, Word, and PowerPoint, thereby establishing AI assistants as their digital partners in work.
• The development of GitHub Copilot saw its number of paid subscribers grow to 4.7 million during Q2 of FY2026, which marks a 75% increase from the previous year.
• Enterprises today, including Siemens, are using AI-powered developer platforms, which led to GitHub Copilot reaching 4.7 million paid subscribers, who conducted a 75% year-over-year growth, during Q2 of FY2026.

Windows 10’s 500M Users Vs. Cortana’s Limited Adoption

• The report showed Microsoft achieved a major milestone when 500 million Windows 10 devices were in operation worldwide, which demonstrated its operating system market penetration.
• Microsoft achieved more success with its enterprise cloud service, which 100 million Office 365 commercial customers accessed monthly, because most companies used the service more than individual users did.
• The company built a strong enterprise market position because 90% of Fortune 500 companies adopted Microsoft cloud services, even though people showed little interest in using Cortana.

2026 Enterprise Adoption – From Voice Commands To Autonomous Agents

Cortana’s Legacy And The Future Of Microsoft’s AI Strategy

• Cortana played a foundational role in shaping the early AI-powered digital assistant and voice recognition ecosystem, even though it eventually struggled to compete with dominant technology platforms.
• Major competitors such as Siri, Google Assistant, and Amazon Alexa benefited from deep integration within smartphone and smart speaker ecosystems, enabling them to capture a significantly larger share of the global voice assistant market.
• Another limiting factor for Cortana’s expansion was its restricted geographic availability, as the assistant supported only around 13 countries, reducing its ability to scale globally compared with competitors available in dozens of markets.
• Recognizing these challenges, Microsoft strategically shifted its focus from consumer voice assistants toward enterprise AI, productivity tools, and cloud-based intelligence platforms.
• Despite declining consumer adoption, Cortana significantly contributed to advancements in artificial intelligence, natural language processing (NLP), and speech recognition technologies, which now power many of Microsoft’s enterprise AI and cloud solutions.

Conclusion

Cortana has played a crucial role in the AI assistant market, which allows users to control voice functions and schedule tasks while receiving live information and using hands-free communication. Microsoft has integrated Cortana into various devices, which include millions of Windows-based systems, throughout its development.

Users now prefer other platforms, which has led to decreased usage of the system because users prefer other voice assistants such as Google Assistant, Siri, and Alexa. Cortana has created a permanent mark in AI development and productivity applications because it shows how Microsoft improved its voice recognition and automation systems.

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