update UWP to WinUI

Author: jwmsft

hub/apps/develop/files/best-practices-writing-files.md

@@ -3,7 +3,7 @@ title: Best practices for writing to files
 description: Learn best practices for using various file writing methods of the FileIO and PathIO classes.
 ms.date: 02/06/2019
 ms.topic: best-practice
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 ---
 # Best practices for writing to files
@@ -55,7 +55,7 @@ To protect the integrity of the original file in case something goes wrong while
 
 The following diagram illustrates the underlying tasks performed by the WriteTextAsync method in a successful write operation. This illustration provides a simplified view of the operation. For example, it skips steps such as text encoding and async completion on different threads.
 
-![UWP API call sequence diagram for writing to a file](images/file-write-call-sequence.png)
+![WinRT API call sequence diagram for writing to a file](images/file-write-call-sequence.png)
 
 The advantages of using the Write methods of the [FileIO](/uwp/api/Windows.Storage.FileIO) and [PathIO](/uwp/api/windows.storage.pathio) classes instead of the more complex four-step model using a stream are:
 

hub/apps/develop/files/change-tracking-filesystem.md

@@ -3,7 +3,7 @@ title: Track file system changes in the background
 description: Describes how to track changes in files and folders in the background as users move them around the system.
 ms.date: 12/19/2018
 ms.topic: how-to
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 ---
 

hub/apps/develop/files/create-read-write-files.md

@@ -1,10 +1,10 @@
 ---
 ms.assetid: 27914C0A-2A02-473F-BDD5-C931E3943AA0
 title: Create, write, and read a file
-description: Learn how to create, write, and read a file using the Universal Windows Platform (UWP) objects FileIO, StorageFolder, and StorageFile.
+description: Learn how to create, write, and read a file using the WinUI objects FileIO, StorageFolder, and StorageFile.
 ms.date: 12/19/2018
 ms.topic: article
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 dev_langs:
   - csharp
@@ -27,7 +27,7 @@ Read and write a file using a [StorageFile](/uwp/api/windows.storage.storagefile
 
 ## Prerequisites
 
--   **Understand async programming for Universal Windows Platform (UWP) apps**
+-   **Understand async programming for WinUI apps**
 
     You can learn how to write asynchronous apps in C# or Visual Basic, see [Call asynchronous APIs in C# or Visual Basic](/windows/uwp/threading-async/call-asynchronous-apis-in-csharp-or-visual-basic). To learn how to write asynchronous apps in C++/WinRT, see [Concurrency and asynchronous operations with C++/WinRT](/windows/uwp/cpp-and-winrt-apis/concurrency). To learn how to write asynchronous apps in C++/CX, see [Asynchronous programming in C++/CX](/windows/uwp/threading-async/asynchronous-programming-in-cpp-universal-windows-platform-apps).
 

hub/apps/develop/files/determine-availability-microsoft-onedrive-files.md

@@ -4,7 +4,7 @@ title: Determining availability of Microsoft OneDrive files
 description: Determine if a Microsoft OneDrive file is available using the StorageFile.IsAvailable property.
 ms.date: 02/08/2017
 ms.topic: how-to
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 ---
 # Determining availability of Microsoft OneDrive files
@@ -20,7 +20,7 @@ Determine if a Microsoft OneDrive file is available using the [StorageFile.IsAva
 
 ## Prerequisites
 
--   **Understand async programming for Universal Windows Platform (UWP) apps**
+-   **Understand async programming for WinUI apps**
 
     You can learn how to write asynchronous apps in C# or Visual Basic, see [Call asynchronous APIs in C# or Visual Basic](/windows/uwp/threading-async/call-asynchronous-apis-in-csharp-or-visual-basic). To learn how to write asynchronous apps in C++, see [Asynchronous programming in C++](/windows/uwp/threading-async/asynchronous-programming-in-cpp-universal-windows-platform-apps).
 

hub/apps/develop/files/fast-file-properties.md

@@ -1,17 +1,17 @@
 ---
-title: Fast access to file properties in UWP
-description: Efficiently gather a list of files and their properties from a library to use in a UWP app.
+title: Fast access to file properties in WinUI
+description: Efficiently gather a list of files and their properties from a library to use in a WinUI app.
 ms.date: 02/06/2019
 ms.topic: article
-keywords: windows 10, uwp, file, properties
+keywords: windows 10, winui, file, properties
 ms.localizationpriority: medium
 ---
-# Fast access to file properties in UWP 
+# Fast access to file properties in WinUI 
 
 Learn how to quickly gather a list of files and their properties from a library and use those properties in an app.  
 
 Prerequisites 
-- **Asynchronous programming for Universal Windows Platform (UWP) apps**     
+- **Asynchronous programming for WinUI apps**     
 You can learn how to write asynchronous apps in C# or Visual Basic, see [Call asynchronous APIs in C# or Visual Basic](/windows/uwp/threading-async/call-asynchronous-apis-in-csharp-or-visual-basic). To learn how to write asynchronous apps in C++, see [Asynchronous programming in C++](/windows/uwp/threading-async/asynchronous-programming-in-cpp-universal-windows-platform-apps). 
 - **Access permissions to Libraries**  
 The code in these examples requires the picturesLibrary capability, but your file location may require a different capability, or no capability at all. To learn more, see [File access permissions](./file-access-permissions.md). 

hub/apps/develop/files/file-access-permissions.md

@@ -4,7 +4,7 @@ title: File access permissions
 description: Apps can access certain file system locations by default. Apps can also access additional locations through the file picker, or by declaring capabilities.
 ms.date: 01/28/2022
 ms.topic: how-to
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 dev_langs:
   - csharp
@@ -15,9 +15,9 @@ dev_langs:
 
 # File access permissions
 
-Universal Windows Platform (UWP) apps can access certain file system locations by default. Apps can also access additional locations through the file picker, or by declaring capabilities.
+WinUI apps can access certain file system locations by default. Apps can also access additional locations through the file picker, or by declaring capabilities.
 
-### Locations that UWP apps can access
+### Locations that WinUI apps can access
 
 When you create a new app, you can access the following file system locations by default:
 
@@ -86,7 +86,7 @@ There are two primary ways to access files and folders in your app's install dir
 
     The "ms-appx:///" prefix in the URI refers to the app's install directory. You can learn more about using app URIs in [How to use URIs to reference content](/previous-versions/windows/apps/hh781215(v=win.10)).
 
-In addition, and unlike other locations, you can also access files in your app install directory by using some [Win32 and COM for Universal Windows Platform (UWP) apps](/uwp/win32-and-com/win32-and-com-for-uwp-apps) and some [C/C++ Standard Library functions from Microsoft Visual Studio](/cpp/cpp/c-cpp-language-and-standard-libraries).
+In addition, and unlike other locations, you can also access files in your app install directory by using some [Win32 and COM for WinUI apps](/uwp/win32-and-com/win32-and-com-for-uwp-apps) and some [C/C++ Standard Library functions from Microsoft Visual Studio](/cpp/cpp/c-cpp-language-and-standard-libraries).
 
 The app's install directory is a read-only location. You can't gain access to the install directory through the file picker.
 
@@ -159,7 +159,7 @@ There are two primary ways to access files and folders from your app's data loca
 
     The "ms-appdata:///local/" prefix in the URI refers to the app's local folder. To access files in the app's roaming or temporary folders use "ms-appdata:///roaming/" or "ms-appdata:///temporary/" instead. You can learn more about using app URIs in [How to load file resources](/previous-versions/windows/apps/hh781229(v=win.10)).
 
-In addition, and unlike other locations, you can also access files in your app data locations by using some [Win32 and COM for UWP apps](/uwp/win32-and-com/win32-and-com-for-uwp-apps) and some C/C++ Standard Library functions from Visual Studio.
+In addition, and unlike other locations, you can also access files in your app data locations by using some [Win32 and COM for WinUI apps](/uwp/win32-and-com/win32-and-com-for-uwp-apps) and some C/C++ Standard Library functions from Visual Studio.
 
 You can't access the local, roaming, or temporary folders through the file picker.
 

hub/apps/develop/files/file-properties.md

@@ -4,7 +4,7 @@ title: Get file properties
 description: Get properties&\#8212;top-level, basic, and extended&\#8212;for a file represented by a StorageFile object.
 ms.date: 12/19/2018
 ms.topic: how-to
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 ---
 # Get file properties
@@ -22,7 +22,7 @@ Get properties—top-level, basic, and extended—for a file represented by a [S
 
 ## Prerequisites
 
--   **Understand async programming for Universal Windows Platform (UWP) apps**
+-   **Understand async programming for WinUI apps**
 
     You can learn how to write asynchronous apps in C# or Visual Basic, see [Call asynchronous APIs in C# or Visual Basic](/windows/uwp/threading-async/call-asynchronous-apis-in-csharp-or-visual-basic). To learn how to write asynchronous apps in C++, see [Asynchronous programming in C++](/windows/uwp/threading-async/asynchronous-programming-in-cpp-universal-windows-platform-apps).
 

hub/apps/develop/files/list-files-folders.md

@@ -4,7 +4,7 @@ title: Enumerate and query files and folders
 description: Access files and folders in either a folder, library, device, or network location. You can also query the files and folders in a location by constructing file and folder queries.
 ms.date: 12/19/2018
 ms.topic: how-to
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 dev_langs:
   - csharp
@@ -16,14 +16,14 @@ dev_langs:
 
 Access files and folders in either a folder, library, device, or network location. You can also query the files and folders in a location by constructing file and folder queries.
 
-For guidance on how to store your Universal Windows Platform app's data, see the [ApplicationData](/uwp/api/windows.storage.applicationdata) class.
+For guidance on how to store your WinUI app's data, see the [ApplicationData](/uwp/api/windows.storage.applicationdata) class.
 
 > [!NOTE]
 > For a complete sample, see the [Folder enumeration sample](https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/FolderEnumeration).
 
 ## Prerequisites
 
--   **Understand async programming for Universal Windows Platform (UWP) apps**
+-   **Understand async programming for WinUI apps**
 
     You can learn how to write asynchronous apps in C# or Visual Basic, see [Call asynchronous APIs in C# or Visual Basic](/windows/uwp/threading-async/call-asynchronous-apis-in-csharp-or-visual-basic). To learn how to write asynchronous apps in C++/WinRT, see [Concurrency and asynchronous operations with C++/WinRT](/windows/uwp/cpp-and-winrt-apis/concurrency). To learn how to write asynchronous apps in C++/CX, see [Asynchronous programming in C++/CX](/windows/uwp/threading-async/asynchronous-programming-in-cpp-universal-windows-platform-apps).
 

hub/apps/develop/files/music-pictures-videos-libraries.md

@@ -4,7 +4,7 @@ title: Managing the Music, Pictures, and Videos libraries
 description: Add existing folders of music, pictures, or videos to the corresponding libraries. You can also remove folders from libraries, get the list of folders in a library, and discover stored photos, music, and videos.
 ms.date: 06/18/2018
 ms.topic: concept-article
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 ---
 # Files and folders in the Music, Pictures, and Videos libraries
@@ -16,7 +16,7 @@ A library is a virtual collection of folders, which includes a known folder by d
 ## Prerequisites
 
 
--   **Understand async programming for Universal Windows Platform (UWP) apps**
+-   **Understand async programming for WinUI apps**
 
     You can learn how to write asynchronous apps in C# or Visual Basic, see [Call asynchronous APIs in C# or Visual Basic](/windows/uwp/threading-async/call-asynchronous-apis-in-csharp-or-visual-basic). To learn how to write asynchronous apps in C++, see [Asynchronous programming in C++](/windows/uwp/threading-async/asynchronous-programming-in-cpp-universal-windows-platform-apps).
 

hub/apps/develop/files/thumbnails.md

@@ -1,16 +1,16 @@
 ---
-title: Guidelines for thumbnail images in UWP apps
-description: Learn how to use thumbnail images to help users preview files as they browse in a Universal Windows Platform (UWP) app.
+title: Guidelines for thumbnail images in WinUI apps
+description: Learn how to use thumbnail images to help users preview files as they browse in a WinUI app.
 label: Thumbnail images
 template: detail.hbs
 ms.date: 3/25/2022
 ms.topic: article
-keywords: windows 10, uwp
+keywords: windows 10, winui
 ms.localizationpriority: medium
 ---
 # Thumbnail images
 
-These guidelines describe how to use thumbnail images to help users preview files as they browse in your UWP app. 
+These guidelines describe how to use thumbnail images to help users preview files as they browse in your WinUI app. 
 
 **Important APIs**