Microsoft has quietly given Windows 11’s built-in Notepad a powerful generative writing upgrade that runs completely offline. The new tools—Summarize, Write, and Rewrite—are now rolling out to Insiders on Copilot+ PCs and don’t require a Microsoft 365 subscription or even a Microsoft account.

What Exactly Is New in Notepad?

Notepad version 11.2508.28.0, currently shipping to Windows Insiders in the Canary and Dev channels, introduces three AI-powered features designed to keep you in the editor instead of switching to a web service or another app.

  • Summarize condenses selected text into short, medium, or long summaries. It’s ideal for distilling meeting notes, long logs, or draft documents into bullet points or concise abstracts.
  • Write generates new text from prompts or expands existing fragments into full paragraphs, lists, or templates. Think of it as a quick compose-from-scratch tool for email drafts, outlines, or quick content.
  • Rewrite rephrases or reformats selected content, with options to change tone, formality, or length. Multiple variants appear for you to choose from, helping polish a paragraph for a different audience or tighten verbose wording.

You’ll find these actions in the Copilot menu, the right-click context menu, and—where supported—via keyboard shortcuts. The focus is in-place assistance: no more pasting text into a browser or launching a separate AI app.

These features operate entirely on the device’s Neural Processing Unit (NPU) when you have a qualifying Copilot+ PC. That means they work offline and without a Microsoft 365 subscription or even a Microsoft account sign-in. If you’re a Microsoft 365 subscriber, you can toggle between the local model and a more capable cloud model. Initially, the local models support only English.

Which PCs Get the Free Ride?

The on-device AI path is gated to Copilot+ PCs—a class of Windows 11 machines with an NPU capable of at least 40 trillion operations per second (TOPS). Microsoft set this hardware bar to ensure responsive, power-efficient inference on battery-operated devices. Common Copilot+ silicon families include the Snapdragon X Series, AMD Ryzen AI 300 series, and Intel Core Ultra 200V variants.

If your laptop or tablet meets that spec, you can use Summarize, Write, and Rewrite right now once you install the Insider build and update the Notepad app. The local processing delivers low latency and keeps your text off cloud servers—an immediate privacy win for sensitive drafts. Offline capability also makes Notepad a practical drafting tool during travel or spotty connectivity.

For Microsoft 365 subscribers with Copilot+ hardware, the update adds flexibility. You can stick with the fast, private local model for most tasks, then flip to a cloud model when you need the higher capacity or up-to-date web knowledge that larger cloud models provide.

If You Don’t Have a Copilot+ PC

Users on older or non-Copilot+ hardware won’t get the free local AI features. Notepad’s generative tools will remain cloud-backed on those devices, and you’ll likely still need a Microsoft 365 subscription with AI credits to access them. The UI might gain the new menus and shortcuts, but the actual processing will happen in the cloud.

This hardware split creates a clear incentive to check your device’s certification. Microsoft publishes lists of Copilot+ PCs, and major OEMs badge qualifying models. If you’re in the market for a new laptop and care about offline AI, the Copilot+ label is now more meaningful than a generic “AI PC” sticker.

Should You Trust the AI’s Output?

All generative models hallucinate: they invent plausible-sounding but incorrect facts. Local models trained for Notepad are no exception. Treat the Summarize, Write, and Rewrite tools as drafting assistants, not authoritative sources. Always review outputs before using them in professional, legal, or official communications.

In terms of privacy, on-device inference is a meaningful step forward. When you use the local model, your text doesn’t leave the machine. However, model provisioning and updates still come from Microsoft or your OEM, and telemetry settings may collect usage data. Administrators should evaluate update flows and telemetry policies to ensure compliance. For regulated industries, the ability to switch to cloud models means you need clear DLP rules governing when and how cloud inference can be used.

If you prefer the classic Notepad experience, the new AI features can be disabled in the app’s settings—no hidden gotchas.

How to Try It Right Now

For enthusiasts and early adopters:

  1. Join the Windows Insider Program if you aren’t already enrolled.
  2. Switch to the Canary or Dev channel to receive build updates that include the Notepad changes.
  3. Confirm your PC is Copilot+ certified. Check your OEM’s specs or Microsoft’s Copilot+ PC pages.
  4. Update the Notepad app via the Microsoft Store—or wait for the update to arrive through Windows Update.
  5. Look for the new options under the Copilot menu, the right-click menu, or experiment with keyboard shortcuts.

IT administrators should consider a controlled pilot:
- Create a test group with Copilot+ endpoints that mirror real workloads.
- Validate DLP, proxy behavior, and model provisioning to ensure no unintended data egress.
- Monitor NPU, CPU, RAM, and battery usage during typical AI tasks.
- Craft policies that define when cloud model switching is allowed and enforce via MDM.
- Gather user feedback through the Feedback Hub to surface issues early.

The Road Ahead

This update signals Microsoft’s broader push to distribute AI across Windows through small, practical tools in familiar apps. Notepad joins Paint and other inbox applications that are quietly gaining on-device intelligence. As the Copilot+ hardware ecosystem grows and model efficiency improves, expect more local AI features and broader language support.

For now, the immediate takeaway is clear: if you own a recent high-end Windows laptop, Notepad just became a free, offline text-generation tool. It won’t replace a full writing suite, but it will save you countless trips to the browser. Start testing it with your everyday notes and drafts, but keep a human eye on the results.