Claude Cowork Setup Guide

Before You Begin

You will need a compatible device (Mac running macOS 13 or later, or Windows 10 or later), an Anthropic account (create one at anthropic.com — your claude.ai credentials work), and about 30 minutes. Do not try to rush this. A careful first setup takes 20 to 30 minutes and saves hours of frustration later.

You will also need the right paid plan. Claude Cowork is not available on the free tier. Claude Pro unlocks Cowork for individual users. If you are setting this up for a team, you will need a Claude for Teams or Enterprise plan. Check Anthropic's current pricing page before you pay for anything.

If you have not yet read What Is Claude Cowork?, start there first. Understanding what you are setting up makes every step in this guide clearer.

Step 1: Download and Install

Go to anthropic.com and navigate to the Claude Cowork download page. Download the version for your operating system.

On Mac: open the downloaded .dmg file, drag the Claude Cowork icon into your Applications folder, and launch Claude Cowork from Applications. On Windows: open the downloaded .exe installer, follow the installation prompts accepting the default location, and launch from your Start menu.

Once you are logged in, you will land on the Claude Cowork home screen. Do not start typing tasks yet — there are three more configuration steps that most people skip, and skipping them is where things go wrong.

Step 2: Grant System Permissions (Critical)

This is the step that matters most and the one that gets skipped most often. Claude Cowork is a desktop AI agent — to do its job, it needs your operating system's explicit permission to access your files and applications. Without these permissions, Cowork can chat with you but cannot take action.

On Mac, go to System Settings > Privacy & Security and grant Accessibility (allows Cowork to interact with other apps), Screen Recording (allows Cowork to see what is on your screen), and Files and Folders access to your active working directories.

On Windows, go to Settings > Privacy & Security and enable Accessibility and Screen Capture under App Permissions. After granting all permissions, restart Claude Cowork — permissions often do not take effect until the application is fully closed and reopened.

Step 3: Configure Your Working Context

This is the step that most setup guides do not mention — and it is what separates a vague, generic Cowork experience from one that actually knows how to help you.

Open Settings in Claude Cowork and find the Custom Instructions field. Write a brief that includes your role and organisation, your common tasks, your communication preferences, and your file structure. For example: "I am a marketing manager at a mid-sized B2B software company in Singapore. I frequently draft campaign briefs, write LinkedIn posts, and summarise competitor reports. I prefer concise, direct language. My active projects are in a folder called /Projects on my Desktop."

Treat this as a living document — update it as you learn what context makes Cowork more useful for your specific work.

Step 4: Connect Your Applications

Claude Cowork becomes significantly more powerful when connected to the tools you already use. Out of the box it can interact with files and basic system applications. With integrations enabled, it can reach into your calendar, your email client, and your project management tool.

The two integrations worth enabling immediately are browser integration (allows Cowork to read web pages you have open) and your cloud storage (Google Drive or OneDrive, so Cowork can access your files directly without downloading and re-uploading). Enable these in the Integrations panel within Settings — each typically takes under two minutes to authorise.

For a full guide to which integrations matter most for different roles, read: Claude Cowork Plugins.

Step 5: Run Your First Task

You are now set up. Before building any complex workflows, run a simple first task to confirm everything is working correctly. Pick something small and low-stakes — ask Cowork to summarise the most recent file in your Documents folder, or tell you how many emails in your inbox have been waiting for a reply for more than 48 hours.

Type your instruction clearly and in plain English. Watch what Cowork does — it will narrate its actions as it works. If it completes the task correctly, your setup is working.

If it returns an error or says it cannot access something, return to Step 2 and check your permissions were saved and that you restarted the application after granting them.

Step 6: Build Your First Reusable Workflow

Once you have confirmed Cowork is working, identify the most repetitive task in your current role. Describe it to Cowork in full detail — what it starts with, what it should do, what format the result should be in, and where it should be saved.

Then save that as a named workflow. Next time you need it done, you trigger it with a single instruction instead of starting from scratch. This is where the real value begins.

Our full guide to building and managing workflows is here: Claude Cowork Workflows.

Common Setup Problems

If Cowork says it cannot access your files, return to Step 2. Check that permissions are granted and that you restarted the application after granting them. This is the most common setup problem and is always fixable.

If Cowork is working but the outputs are generic and not useful for your work, return to Step 3. Your context configuration is either missing or too vague. Spend ten minutes writing a proper custom instruction — the improvement in output quality is immediate.

If the tool does not feel like the demos you saw, this is almost always a training issue, not a setup issue. This is precisely what our Claude Cowork Training programme is built around. Join a workshop in Singapore to see the difference structured training makes.