Windows 11 Copilot is Microsoft’s AI assistant built into Windows itself — accessible via a Copilot key on supported keyboards, the taskbar button, or Win+C. It opens a sidebar panel that stays alongside whatever you’re working on: ask it questions, have it summarise documents, generate or improve text, explain concepts, or write code. Unlike a web-based AI tool, Copilot integrates with the PC context — it can see what’s on screen (on Copilot+ PCs) and interact with some Windows settings directly. This fits into the wider topic we cover in our Windows 11 How-To Guides.
The Copilot experience varies significantly by hardware. On Copilot+ PCs (machines with a dedicated NPU — Neural Processing Unit — meeting Microsoft’s 40 TOPS threshold), Copilot has access to additional capabilities including screen awareness and faster local processing. On standard Windows 11 machines: Copilot runs as a cloud-connected service, which is still capable but different from the local, privacy-preserving experience on Copilot+ hardware.
Opening and using Copilot
Win+C opens the Copilot sidebar. On keyboards with a Copilot key (a newer addition to Windows keyboards): pressing it opens the same sidebar. Clicking the Copilot button in the taskbar (if enabled) does the same.
The sidebar is a conversational chat interface. Type a question or request and press Enter. Copilot responds with text, formatted answers, code blocks, or links to relevant resources. Follow-up questions work within the same conversation context — it remembers what was discussed earlier in the session.
Practical things Copilot handles well:
- Explaining concepts and answering factual questions (draws on the same underlying model as Bing Chat)
- Summarising long text you paste into the chat
- Writing and editing: drafts, email rewrites, improving phrasing
- Code assistance: explaining code, writing functions, debugging logic
- Math and reasoning tasks
- Windows settings help: “How do I enable Focus Assist?” → it answers and provides a direct link to the setting
Copilot+ PC exclusive features
On Copilot+ PCs, additional AI features are available beyond the chat sidebar:
Recall: a continuously-running visual timeline of everything you’ve done on the PC — every website visited, document opened, image viewed. Recall uses on-device OCR to make this history searchable (“show me that spreadsheet from last week about project costs”). Stored locally and processed on the NPU. As of 2025-2026: Recall is available but controversial due to privacy concerns; it can be disabled in Settings → Privacy & security → Recall.
Live Captions with translation: real-time transcription of any audio on the PC with optional live translation into English from 44 languages. Works on-device using the NPU — no audio sent to the cloud for transcription.
Cocreator (Paint): generate images from text prompts directly in the Windows Paint app using on-device AI generation.
Super Resolution (gaming): AI-enhanced upscaling for games running below native resolution, improving image quality on Copilot+ PCs with compatible GPUs.
Restyle (Photos): AI-powered photo stylisation in the Windows Photos app — apply artistic styles to photos locally on the device.
Copilot in Microsoft 365
Copilot in Windows is different from Microsoft 365 Copilot (the paid enterprise add-on for Word, Excel, Outlook, Teams, and other Office apps). Windows Copilot is part of Windows 11 and doesn’t require an additional subscription beyond a Microsoft account. Microsoft 365 Copilot is a separate per-user subscription that adds AI assistance inside Office applications — creating summaries of emails, generating first drafts in Word, analysing data in Excel.
The features overlap in some areas (both can help write text) but serve different contexts. Windows Copilot is the general-purpose sidebar for anything; Microsoft 365 Copilot is deeply integrated with document and email workflows and has access to your actual files and calendar data.
Our guide on Windows 11 Settings covers the Copilot-accessible Windows controls, and our guide on Windows 11 accessibility features covers Live Captions, which Copilot+ extends with translation. For the latest Copilot+ PC features and supported hardware, Microsoft’s Copilot+ PC page covers the current feature set and qualifying hardware specifications.
Practical Copilot use patterns
The users who get the most value from Copilot treat it as a “first draft” tool rather than an authority. Common effective patterns:
- Research starting point: “Explain the difference between TCP and UDP” → get a clear explanation to build on rather than starting from scratch with a search engine
- Text improvement: paste a drafted email or paragraph → “Make this more concise and professional” → use Copilot’s revision as a starting point, then adjust
- Code generation: “Write a Python function that reads a CSV and returns the rows where column B is greater than 50” → generates working code, often correct for straightforward requests
- Quick calculations and conversions: “If I drive 200 miles at 45mph, how long does it take? Convert the result to minutes” → faster than a calculator for multi-step unit problems
- Windows navigation: “Where is the setting to change my default browser?” → Copilot answers with the path and sometimes provides a direct Settings link
What Copilot doesn’t do well
Being honest about limitations prevents frustration:
- Real-time information: Copilot’s knowledge has a training cutoff. For current events, live data, or recently-changed information: Bing search integrated into Copilot can supplement, but verify anything time-sensitive
- Long document processing: the context window limits how much text you can paste in one conversation. Very long documents require splitting or a tool specifically designed for document analysis
- Precise factual accuracy: AI models hallucinate — generate plausible-sounding but incorrect information. Verify any specific fact, number, or reference that matters before using it
- File system access on standard PCs: without Copilot+ screen awareness, Copilot doesn’t see your files or what’s on screen unless you paste the content into the chat
Controlling Copilot in Windows 11
Copilot settings: right-click the Copilot button in the taskbar → Settings → options for which data Copilot can access, conversation history preferences, and voice interaction settings. Disabling Copilot entirely: Settings → Personalisation → Taskbar → Copilot toggle → Off removes the taskbar button. The Win+C shortcut still opens the sidebar on some configurations even after disabling the button; fully disabling Copilot for organisational deployment requires Group Policy (Computer Configuration → Administrative Templates → Windows Components → Windows Copilot → Turn off Windows Copilot).
Privacy with Copilot
On standard Windows 11 (non-Copilot+): conversations with Copilot are sent to Microsoft’s servers for processing. Content typed into Copilot chat is subject to Microsoft’s privacy policy. For sensitive information (passwords, personal data, confidential business content): don’t paste it into the Copilot chat, just as you wouldn’t paste it into a public web form.
On Copilot+ PCs: the Recall feature and some AI features process data locally on the NPU without sending it to the cloud. The privacy profile is different and significantly better for locally-processed features — but verify which features are local vs cloud for any specific feature before assuming local processing.
| Feature | Standard Windows 11 | Copilot+ PC only |
| Copilot chat sidebar | Yes | Yes |
| Text generation and editing | Yes | Yes |
| Recall (activity timeline) | No | Yes |
| Live Captions with translation | No (captions only) | Yes |
| On-device image generation (Paint) | No | Yes |
| AI photo styles (Photos app) | No | Yes |
| Gaming super resolution | No | Yes (supported GPUs) |
Windows 11 Copilot is the most visible of Microsoft’s AI integrations into Windows, but it’s not isolated — the Copilot features in Windows connect to a broader Microsoft AI ecosystem that includes Office, Bing, Azure, and hardware-level NPU processing on Copilot+ PCs. Getting familiar with what Windows Copilot can and can’t do on your specific hardware determines how useful it becomes in daily use. For general AI assistance tasks: it’s a capable, immediately accessible tool. For the more sophisticated Copilot+ features: they become significant differentiators as the hardware becomes more widely adopted.
Voice interaction with Copilot
Copilot supports voice input — click the microphone icon in the chat or press a configured shortcut to speak your question rather than typing it. The voice input uses Windows’ speech recognition infrastructure, which means it benefits from language packs and speech recognition training configured in Settings → Time & language → Speech.
Voice interaction is useful for: hands-free questions while working with physical materials, quick queries while driving (on a laptop in a car), or accessibility scenarios where typing is difficult. The voice transcription appears in the input box, giving you a chance to review and edit before submitting if needed.
Copilot and Windows actions
Beyond answering questions, Copilot can directly perform some Windows actions. Ask it to: “Turn on dark mode,” “Open the screenshot tool,” “Set a timer for 20 minutes,” “Change my wallpaper,” “Open Settings.” For recognised actions: Copilot either performs the action directly or asks for confirmation before doing so. This turns Copilot into a natural language interface for common Windows tasks — useful for commands you know you want but don’t remember the exact setting location for.
The range of directly-actionable commands is limited and doesn’t cover every Windows feature, but it’s genuinely useful for the most common day-to-day toggles and navigation tasks. Think of it as a more capable version of typing in the Start menu search — it understands intent rather than requiring exact search terms.
Copilot vs web-based AI tools
Copilot in Windows draws on the same underlying AI as ChatGPT competitor Bing Chat / Microsoft Copilot (web). The Windows integration adds one significant advantage: it stays open alongside your work as a sidebar rather than requiring you to switch to a browser tab. For users who frequently context-switch to an AI chat during work: the sidebar accessibility reduces friction enough to matter for daily use.
The web versions (copilot.microsoft.com) and the Windows sidebar Copilot are substantially the same AI capability, with the Windows version offering the OS-level integrations (Windows actions, Copilot+ features) that a web browser can’t access. Choose based on where you’re working: Windows sidebar when you’re doing desktop work; web version when you’re already in a browser and want full-screen chat space.
Getting the most from Copilot — prompt patterns that work
Like any AI assistant, Copilot responds better to well-framed requests. Patterns that consistently produce useful output:
- Specify the format: “Explain X in three bullet points” or “Give me a table comparing A and B” rather than just “Tell me about X”
- Provide context: “I’m a non-technical user trying to understand…” or “I’m writing for an audience of developers…” gives Copilot calibration for the response level
- Iterative refinement: “Make that shorter,” “Add an example,” “Rewrite the first paragraph to be more direct” — treating the first response as a draft to refine rather than the final answer
- Explicit constraints: “Without using technical jargon,” “In under 100 words,” “Using only Python standard library” — constraints produce more targeted responses
These prompting patterns work across all AI tools, not just Copilot. Developing them in the context of Windows Copilot (which is immediately accessible) builds the prompting intuition that transfers to every AI tool in the Microsoft ecosystem and beyond.
Copilot in 2026 — the evolving landscape
Microsoft’s AI integration strategy is moving fast, and Copilot features available in 2026 are meaningfully different from what shipped with Windows 11 originally. New features roll out through Windows Updates rather than requiring OS upgrades. Check Settings → Windows Update → Update history → Features for recent Copilot additions. What’s described in this guide reflects the current state; Microsoft is actively expanding what Copilot can do in Windows, so additional capabilities may be available with newer feature updates.
The broader direction: Microsoft is integrating AI assistance throughout the Windows UI rather than keeping it in a single sidebar. The Copilot experience in each Office application, the AI features in Photos, the AI coding assistance in VS Code via GitHub Copilot, and the Windows-level Copilot sidebar all represent different aspects of the same underlying strategic shift — AI assistance as a layer that runs throughout the Microsoft software stack rather than a standalone product. Windows 11 Copilot is the central access point for this in the OS itself.
Copilot is worth trying even with healthy scepticism — the AI assistance has genuine practical utility when approached as a tool rather than an authority, and the accessibility of having it in a persistent sidebar rather than a separate application reduces the barrier to trying it for small tasks. The feature set expands with each Windows update, making periodic reassessment worthwhile even if the initial experience was limited or unimpressive. If this sounds familiar, Windows 11 Narrator is worth a look.
