# Generate your Visual Studio C++ solution

> Understand the Visual Studio C++ solution that Unity automatically generates.

When you [build a project from Unity for Universal Windows Platform](/engine/6000.6/manual/platform-specific/windows-store/uwp-building-and-delivering/windowsstore-buildsettings.md) (UWP), Unity automatically generates a Visual Studio solution.

## Create your Visual Studio C++ solution

Unity generates a Visual Studio solution containing the following projects:

| **Project**             | **Description**                                                                                                                                                                                                                                 |
| ----------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **projectName**         | Contains your main project code. Visual Studio builds this project into an application package, which you can deploy to a device or uploaded to the Microsoft Store.**Note:** Unity doesn’t overwrite this project when you build on top of it. |
| **Unity Data**          | Contains all the Unity-specific files you need to build your project, such as assets.                                                                                                                                                           |
| **Il2CppOutputProject** | Contains the generated C++ code which Unity converts from managed assemblies.**Note:** This project is overwritten every time you build over it.                                                                                                |

## Visual Studio build configurations

Unity provides the following [build configuration options in Visual Studio](https://learn.microsoft.com/en-us/visualstudio/ide/understanding-build-configurations):

| **Configuration**  | **Description**                                                                                                                                                                                                                                                                                                                                              |
| ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Debug**          | Use **Debug** to debug your code. This configuration:- Disables all optimization.- Preserves all debugging information in the code.- Results in code that runs slowly.- Results in the fastest build time.                                                                                                                                                   |
| **Release**        | Use **Release** to profile your game. This configuration:- Enables code optimizations.                                                                                                                                                                                                                                                                       |
| **Master**         | Use **Master** for game submission and final testing. This configuration:- Disables the profiler.- Results in the same build time as the Release configuration.- Results in the same build time as the **Release** configuration.                                                                                                                            |
| **MasterWithLTCG** | Use **MasterWithLTCG** for game submission and final testing. This configuration:- Enables link time code generation for generated C++ code, IL2CPP runtime, and IL2CPP garbage collection.- Results in much longer build times compared to the **Master** configuration.- Results in an application that executes faster than the **Master** configuration. |