What Is Microsoft Copilot Cowork and How to Enable It

Most Copilot features in Microsoft 365 are reactive. You ask, Copilot answers. You prompt, Copilot drafts. Copilot Cowork is different. Instead of responding to individual prompts, Cowork actually takes action. It sends emails, creates documents, schedules meetings, posts in Teams, and manages your calendar. You describe what needs to happen, and Cowork works through the steps to make it happen.

This is a meaningful shift in what AI in Microsoft 365 can do, and it is worth understanding what Cowork is, what it can handle, and what the current limitations are before you start using it.

What Is Copilot Cowork?

Copilot Cowork is an agentic feature built into Microsoft 365 Copilot. Where standard Copilot generates text for you to review and use, Cowork goes further by taking actions on your behalf inside Microsoft 365.

The difference in practice is significant. If you ask standard Copilot to send a meeting recap to your team, it will draft an email for you to send. If you ask Cowork to do the same thing, it drafts the email and then asks your permission to actually send it. Once you approve, it sends it.

Cowork handles multi-step work. You do not need to guide it through each individual task. You describe an outcome, Cowork figures out the sequence of steps, works through them one by one, and checks in with you before anything sensitive happens like sending a message or scheduling a meeting.

It is currently available through the Microsoft 365 Frontier program, which is Microsoft's early access channel for emerging Copilot features. It is a preview, which means it is still being developed and things may change.

What Can Copilot Cowork Do?

Cowork has 13 built-in skills covering the most common types of work in Microsoft 365. Here is a breakdown of the main categories.

Email and Communication

• Draft, reply to, forward, and send emails through Outlook
• Manage your inbox by sorting emails into folders, deleting, or responding inline
• Post messages to Teams channels or send direct messages in 1:1 and group chats
• Create and send HTML newsletters via email
• Prepare polished stakeholder communications such as status updates, announcements, and follow-ups

Documents and Files

• Create Word documents, Excel spreadsheets, PowerPoint presentations, and PDFs from scratch
• Edit and refine existing documents you share in the conversation
• Create SharePoint and OneDrive folders and reorganize files into new or existing folders
• Pull in content from across your Microsoft 365 data using Work IQ context

Calendar and Meetings

• Schedule meetings using plain language, such as "set up a 30-minute check-in with Alex tomorrow at 2 PM"
• Manage your calendar: add events, move things around, and decline meetings with a message to the organizer
• Get daily briefings that highlight what is ahead
• Gather meeting intelligence and insights to help you prepare for upcoming conversations

Research

• Search across your organization to find documents, messages, and information
• Perform deep research that synthesizes information from multiple sources into comprehensive reports
• Browse SharePoint and OneDrive folders and pull in files to work with

Automation

• Run prompts on a schedule so recurring tasks happen automatically without you manually triggering them

How Cowork Actually Works

Here is what a typical Cowork interaction looks like from start to finish.

1. You open Cowork at m365.cloud.microsoft, select Cowork from the left navigation or All agents, and describe what you need. You can type up to 16,000 characters, so there is plenty of room to be specific. You can also attach files, add work context from OneDrive or SharePoint, or use voice input.
2. Cowork breaks your request into steps and starts working through them. You can follow along in real time as each step appears in the conversation, things like "Composing your email" or "Creating your presentation."
3. Before taking any sensitive action, Cowork pauses and asks for your approval. The button label matches the action, so you will see Send, Post, or Schedule rather than a generic confirm button. You can approve, cancel, or skip the prompt for similar future actions if you want it to move faster.
4. When Cowork finishes, you review the results. Download documents from the side panel or your OneDrive Cowork folder, check sent messages, or ask Cowork to make changes.

You stay in control throughout. You can pause, resume, or cancel the current task at any point. If you think of something else while Cowork is working, you can send another message and it gets queued automatically. Cowork processes queued messages in order.

The Control Model: What Needs Your Approval

One of the more important things to understand about Cowork is how it handles approvals. Not every action requires a confirmation. Cowork uses a risk-level approach:

• Low-risk actions like searching for information or creating a draft document happen automatically without stopping to ask.
• Medium and high-risk actions like sending an email, scheduling a meeting, posting in Teams, or modifying your calendar pause and ask for explicit approval before proceeding.

Each approval prompt shows a risk level indicator and a button that matches the specific action. You can also choose to skip future approval prompts for similar actions if you want Cowork to work more autonomously for a particular task type.

This model is intentional. Cowork is powerful enough to cause real-world consequences like sent emails and booked meetings, so the approval layer exists to make sure nothing happens that you did not intend.

What Cowork Is Not

It is worth being clear about what Cowork does not do, because there is a lot of AI hype in this space and the distinctions matter.

Cowork is not fully autonomous. It does not run in the background making decisions without you. Every sensitive action requires your sign-off. Think of it as a capable assistant that can take on multi-step work but checks in before doing anything consequential.

Cowork is not a replacement for standard Copilot. For everyday single-step tasks like drafting an email, getting a summary, or asking a question about a document, regular Copilot is faster and more appropriate. Cowork is for longer, more complex workflows that span multiple steps or apps.

Cowork is not generally available yet. It is in preview through the Frontier program. You should expect it to evolve, and some behaviors may change before it reaches full general availability.

Requirements and Availability

What You Need

• A Microsoft 365 Copilot license (Premium). Standard Microsoft 365 licenses do not include Cowork.
• Enrollment in the Microsoft 365 Frontier program. Go to Copilot in the Microsoft 365 admin center, select Settings, then Frontier, and enroll.
• Anthropic enabled as a subprocessor in your tenant. Cowork uses Anthropic's agentic model for its multi-step reasoning. For most commercial tenants outside the EU, Anthropic is already enabled by default.

EU Tenants

If your tenant is based in the European Union, Copilot Cowork is off by default due to EU Data Boundary requirements. Admins need to explicitly enable both Anthropic as a subprocessor and Cowork itself before users can access it. This requires a deliberate decision to opt in rather than an opt out.

How to Enable Cowork in the Microsoft 365 Admin Center

Enabling Cowork is a two-part process. First you enroll your tenant in the Frontier program, then users can find and install Cowork from the Agent Store. Here are the exact steps.

Step 1: Enable Frontier for Your Tenant

1. Sign into the Microsoft 365 admin center at admin.microsoft.com using a Global Administrator account.
2. In the left navigation, select Copilot.
3. Select Settings.
4. Under User access, select Copilot Frontier.
5. Choose whether to enable Frontier for All users, Specific users and groups, or leave it disabled. If you want to pilot Cowork with a limited group first, select Specific users and groups and add the relevant people or security groups.
6. Save your changes.

If you do not see the Copilot Frontier option under Settings, verify that your tenant has at least one active Microsoft 365 Copilot license assigned. The Frontier option only appears once a Copilot license is present.

Step 2: Enroll the Admin Account in Frontier

This is the step that catches a lot of admins out. Enabling Frontier for users is not enough on its own. The admin account that will be managing Cowork also needs to be personally enrolled in Frontier, otherwise Cowork will not appear in the Agent management section of the admin center.

1. While still in the admin center, go to Copilot, then Settings, then Frontier.
2. Make sure the account you are signed in with is included in the Frontier access. If you set it to Specific users, add your own admin account explicitly.

Step 3: Verify Anthropic Is Enabled

1. In the admin center, go to Copilot, then Settings.
2. Find the Anthropic subprocessor setting and confirm it is toggled on.
3. If you are in the EU, you will need to explicitly turn this on. For most other commercial regions it is on by default.

Step 4: Access the Agents Section

1. In the Microsoft 365 admin center left navigation, select Agents.
2. You may be prompted to agree to terms of service the first time you access this section.
3. From here you can see all available agents including Cowork, manage which users have access, deploy Cowork on behalf of users, or pin it in the Copilot interface so it appears by default for your organization.

Default Behavior After Enabling

Once Frontier is enabled for an account, Cowork is available to those users in your tenant. This means those users can discover and install it themselves from the Agent Store. It is not pre-installed or pre-pinned, so users need to find it. If you want Cowork to appear automatically for users without them having to install it themselves, you can deploy and pin it from the Agents section of the admin center.

Admins can also restrict access to specific users or groups from the Agents section if you do not want it available to everyone.

How Users Access Cowork Once Enabled

1. Open Microsoft 365 Copilot at m365.cloud.microsoft or in the desktop app for Windows or Mac.
2. In the left navigation, look for Cowork. If it is not visible, select All agents to find it in the Agent Store.
3. Select Cowork and either open it directly or install it to add it to the left navigation.
4. The Cowork home page opens with a chat input, suggested prompts, and any recent tasks.

If a user cannot see Cowork even after Frontier is enabled on their account, check that their specific account is included in the Frontier access settings and that they have an active Microsoft 365 Copilot license assigned.

Admin Considerations

As an admin, there are a few things worth knowing before you enable Cowork for your organization.

Cowork operates within your existing Microsoft 365 security and compliance boundary. Actions it takes, such as sending emails or creating files, are tied to the user's account and subject to the same policies that govern that user's normal activity. Data Loss Prevention policies, retention policies, and audit logging apply to Cowork actions the same way they apply to user-initiated actions.

Because Cowork relies on Anthropic as a subprocessor, you should verify your tenant's current Anthropic status before enabling Frontier. More on the current state of Anthropic in Microsoft 365: How to Enable Claude in Microsoft Copilot.

If you want to review the broader Copilot governance settings in your tenant before enabling agentic features, Copilot Admin Settings to Check for Governance is a good starting point.

And if you are not ready to enable Cowork or any Copilot features for your organization yet, How to Disable Copilot as a Microsoft 365 Admin covers the controls available.

Custom Skills

One of the more interesting aspects of Cowork is that you can extend it with your own custom skills. A custom skill is a Markdown file that describes a specific type of task or workflow you want Cowork to follow.

To create a custom skill, create a subfolder inside your OneDrive at Documents/Cowork/Skills/ and place a SKILL.md file inside it. For example, if you want a "weekly report" skill, you would create Documents/Cowork/Skills/weekly-report/SKILL.md and write instructions inside that file describing how you want Cowork to handle weekly report tasks.

Cowork discovers custom skills automatically at the start of each conversation. You can create up to 20 custom skills. This is a genuinely useful feature for repeating workflows where you have a specific way you want things done.

How Cowork Fits Into the Broader Copilot Picture

Cowork sits at one end of the Copilot capability spectrum. At the other end you have the standard chat experience in Copilot Chat, which is best for quick questions, single-step drafting, and getting information. In the middle you have things like Copilot in Excel, which is purpose-built for spreadsheet work. What Can Copilot Do in Excel? covers that in detail.

Cowork specifically uses Anthropic's agentic model for its multi-step reasoning, which is part of why it is better at longer, more complex tasks than the standard Copilot Chat experience. The underlying model choice matters for this kind of work, and it explains why Anthropic enablement is a hard requirement rather than an optional add-on. GPT-5 handles the standard Copilot Chat experience, and you can read more about how the model selector works in Copilot Chat.

Frequently Asked Questions

Is Copilot Cowork free with a Microsoft 365 Copilot license?

Cowork is included with the Microsoft 365 Copilot license at no additional cost, but you do need to be enrolled in the Frontier program to access it during the current preview phase. Frontier enrollment is free but requires an admin to opt in.

Can Cowork access files outside my organization?

No. Cowork operates within your Microsoft 365 tenant boundary. It can access files in your OneDrive, SharePoint, and Teams that you have permission to access, but it cannot reach outside your organization.

What happens if Cowork makes a mistake?

Because Cowork asks for approval before taking sensitive actions, the risk of an unintended consequence is reduced. If Cowork does something you did not intend, most actions are reversible through normal Microsoft 365 means. For example, a sent email cannot be unsent, but a created document can be deleted, a scheduled meeting can be cancelled, and a Teams post can be deleted. The approval model is designed specifically to catch potential mistakes before they happen.

Can I use Cowork on mobile?

Cowork is currently available in the browser at m365.cloud.microsoft and in the Microsoft 365 Copilot desktop app for Windows and Mac. Mobile availability had not been confirmed at the time this was written.

Is Cowork suitable for regulated industries?

Cowork follows the same data protection policies as the rest of Microsoft 365 Copilot and adheres to Microsoft's OneDrive privacy and security framework. However, because it is still in preview and relies on Anthropic as a subprocessor, organizations in highly regulated industries should review the current data handling documentation and consult their compliance team before rolling it out broadly.

How is Cowork different from Power Automate?

Power Automate is a workflow automation tool that runs on predefined, rule-based flows you set up in advance. Cowork is AI-driven and interprets natural language requests in real time. You do not need to build or configure a flow. The tradeoff is that Power Automate is more deterministic and predictable for repeatable structured processes, while Cowork is more flexible and better suited to ad-hoc, multi-step tasks where the exact steps are not always the same.

Final Thoughts

Copilot Cowork represents a genuine step change in what Microsoft 365 AI can do. Moving from "generate text for me to use" to "take action on my behalf" is not a minor incremental improvement. It is a different model of working with AI entirely.

That said, it is early. This is a Frontier preview, which means it is not finished and it is not for everyone yet. If you are an admin thinking about enabling it, read the governance documentation first, make sure your compliance posture is comfortable with Anthropic as a subprocessor, and start with a limited pilot group rather than a broad rollout.

If you are a user with Frontier access, the best way to understand what Cowork can do is to throw a real multi-step task at it and see how it handles the work. Start with something low stakes, follow along as it works through the steps, and pay attention to what it asks your approval for. That will give you a practical sense of where it is genuinely useful and where you still want to handle things yourself.