--- title: StartupApp description: This section describes the StartupApp settings that you can configure in provisioning packages for Windows 10 using Windows Configuration Designer. ms.topic: reference ms.date: 01/25/2024 --- # StartupApp (Windows Configuration Designer reference) Use StartupApp settings to configure the default app that will run on start for Windows 10 IoT Core (IoT Core) devices. ## Applies to | Setting | Windows client | Surface Hub | HoloLens | IoT Core | | --- | :---: | :---: | :---: | :---: | | Default | | | | ✅ | Enter the [Application User Model ID (AUMID)](/windows-hardware/customize/enterprise/find-the-application-user-model-id-of-an-installed-app) for the default app.