Microsoft Copilot from zero

You have probably seen the Microsoft Copilot icon in Outlook, Teams or Word and wondered whether it is worth clicking. This guide gets you from "never used it" to "used it for something real" in one sitting.

By the end you will know what Microsoft Copilot is, where it lives, what it does well, where it goes wrong, and you will have run five useful prompts on your own work.

1. What Microsoft Copilot actually is

Microsoft Copilot is an AI assistant built into Microsoft 365. You type a request in plain English, and it writes, summarises, analyses or rearranges content for you.

Under the hood it uses large language models. Three ideas will save you most beginner frustration:

• It predicts, it does not know. A language model generates the most likely next words. That is why it can sound confident and still be wrong. You stay the decision maker.
• It works with what it can see. Depending on your licence, Microsoft Copilot can draw on the web, on files you attach, or on your emails, chats, meetings and files through Microsoft Graph and Work IQ. It only sees what you already have permission to see.
• The same prompt can give different answers. That is normal. If an answer is weak, rephrase and try again rather than giving up.

2. Where to find it

• The Microsoft Copilot app, on the web at copilot.cloud.microsoft, on Windows and Mac, and on mobile.
• Inside your apps: Outlook, Teams, Word, Excel, PowerPoint and OneNote all have a Microsoft Copilot button or pane.
• In Microsoft Edge, through the Microsoft Copilot icon in the top corner, to summarise the page you are on.

Always sign in with your work account. Look for the green shield or "Work" label, which tells you that enterprise data protection applies.

3. What it is good at

• Turning a long thread, document or meeting into a short summary.
• Producing a decent first draft you can then edit.
• Rewriting for a different audience or tone.
• Explaining a spreadsheet, a formula or an unfamiliar term.
• Pulling together information you already have but cannot easily find (with the full licence).

4. Where it goes wrong

• Facts and figures. It can invent a citation, misread a number or merge two sources. Check anything that matters.
• Agreeing with you. If your prompt assumes something false, it may play along. Ask neutral questions.
• Missing context. It does not know your client history or your house style unless you tell it or point it at a source.
• Judgement. It can draft advice. It cannot take responsibility for it.

5. Five things to try this week

Summarise the emails I received yesterday that need a reply from me. List them by urgency, with one line on what each person wants.

Here is a paragraph I wrote: [paste]. Rewrite it for a client who is not a specialist. Keep it under 120 words and keep the meaning exactly the same.

I have a meeting with [name] about [topic] tomorrow. What have we discussed recently by email and in Teams, and what is still open?

Explain what this Excel formula does in plain English, then suggest a simpler version if there is one: [paste formula]

Turn these rough notes into a tidy action list with owners and dates: [paste notes]

Prompts 1 and 3 need the full Microsoft 365 Copilot licence because they read your mailbox and meetings. The others work in Copilot Chat too. Not sure which you have? See Which Microsoft Copilot do I have?.