For a new native Windows desktop app, start by assessing WinUI 3 with the Windows App SDK: Microsoft recommends it for new Windows desktop applications. That recommendation is a useful starting point, not a rule that every project should use WinUI. If you are learning WPF or maintaining an existing WPF, Windows Forms, or Win32 app, those paths remain supported and may be the more practical fit.
Choose a framework that fits your app
Before installing tools, decide whether you are starting from scratch or extending an existing application, and whether the program genuinely needs a Windows desktop interface. Consider the target Windows versions, the kind of interface and controls you need, your team’s familiarity, and how you intend to distribute the app. These are project decisions, not a Microsoft-published framework scorecard.
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| Situation | Practical starting point | What to know |
|---|---|---|
| New native Windows app with a modern Windows interface | WinUI 3 with the Windows App SDK | Microsoft calls WinUI 3 its recommended native UI framework for new Windows desktop applications. It uses C# and XAML. Microsoft’s Windows app getting-started documentation |
| Learning WPF or building a WPF app | WPF Application template targeting modern .NET | Microsoft provides a Visual Studio starter tutorial that covers XAML, controls, event handling, running, and debugging. Use its modern .NET template path, not the .NET Framework template. WPF tutorial |
| Existing WPF, Windows Forms, or Win32 app | Keep the current UI framework if it meets the need; assess incremental Windows App SDK integration | The Windows App SDK can be used with these existing app types for supported newer Windows capabilities. Its availability does not mean a rewrite is automatically necessary. Windows App SDK overview |
| Windows Forms app | Windows Forms remains a documented .NET desktop UI technology | Choose it when it suits the project and your team’s needs. The guidance here does not prescribe a specific first-project setup for Windows Forms. .NET desktop guide |
What you need for a first WinUI 3 project
Microsoft’s current WinUI quickstart specifies .NET SDK 10 or later and Developer Mode. It offers a Visual Studio route and a command-line route. The quickstart names Visual Studio 2026 with the WinUI application development workload; its CLI route requires winapp CLI 0.6 or later and is marked public preview. Because workload labels and preview tooling can change, check the live quickstart before installing.
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WinUI 3 documentation lists Windows 10 version 1809 (build 17763) and later, including Windows 11, as its baseline. That framework baseline does not guarantee that every Windows API, third-party library, or package you choose supports every version in that range. Check the compatibility of those dependencies separately.
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For a WPF learner, Microsoft’s current Visual Studio tutorial lists Visual Studio 2026, the .NET desktop development workload, and the .NET 10 component. It directs you to choose WPF Application targeting .NET 10 (LTS), and warns against selecting WPF Application (.NET Framework) for that modern .NET path.
Create and run a small app
Visual Studio route for WinUI 3
- Install .NET SDK 10 or later and Visual Studio 2026 with the WinUI application development workload, following the WinUI quickstart.
- Enable Developer Mode in Windows as the quickstart requires.
- In Visual Studio, create a blank C# WinUI project using the template and options shown in the current quickstart.
- Run the project with F5. Confirm that the app window opens before adding features.
- Edit the app’s XAML layout to add a TextBlock, following the quickstart’s example, then run the app again to see the change.
Command-line route for WinUI 3
The same quickstart documents a CLI workflow using winapp CLI 0.6 or later. Microsoft labels that CLI public preview, so commands and behavior may change. Follow the current quickstart rather than relying on copied commands that may become stale: WinUI quickstart and CLI steps.
Visual Studio route for WPF
- Install Visual Studio 2026 and select the .NET desktop development workload, including the .NET 10 component.
- Create a project from the WPF Application template.
- Select .NET 10 (LTS) as the target framework. Do not select WPF Application (.NET Framework) for the tutorial’s modern .NET route.
- Continue through Microsoft’s tutorial to add controls, handle events, and run and debug the app: Create a WPF app in Visual Studio.
Turn the running window into a useful program
A blank window proves the project builds; it does not yet solve a user’s problem. Pick one small task—such as tracking a list, converting values, or organizing local notes—and build it in steps:
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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →- Lay out the screen. Add only the controls needed for the main task. Use XAML for WinUI or WPF interfaces, and arrange controls so the window remains understandable at different sizes.
- Make interaction explicit. Connect buttons and other controls to events or commands. Give users visible feedback when an action succeeds or cannot be completed.
- Represent data deliberately. Use data binding where it simplifies keeping the interface and underlying data in sync; avoid adding an elaborate architecture before the app needs one.
- Validate input. Check values before acting on them, explain errors in user terms, and preserve valid work when possible.
- Handle local data and failures. Decide what the app stores, where it stores it, and what happens if reading or writing fails. Do not treat a successful launch as proof that data handling is reliable.
- Check accessibility and usability. Ensure controls can be reached and understood, labels are meaningful, and the interface does not rely on color alone.
- Debug as you build. Run the app after each small change, reproduce failures, and use Visual Studio’s debugging tools to inspect the code path and values involved.
Plan packaging and distribution separately
Running a project from Visual Studio is not the same as preparing it for other people to install. Microsoft documents packaging, deployment options, distribution paths, and Store publishing as separate parts of shipping. MSIX and the Microsoft Store are options, not universal requirements for every Windows app. Choose a route that fits how users will obtain and update your program, then follow the relevant current guidance for packaging, signing, deployment, and any Store requirements.
Start with Microsoft’s packaging and deployment documentation to compare distribution paths, and consult the Windows App SDK deployment guide for SDK deployment choices. Stable Windows App SDK releases are intended for production apps; preview or experimental channels can contain APIs that change or are removed. Check the current release guidance before choosing a version for a shipped app: stable channel.
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