您想知道如何更改Windows 10用于查看图片或观看电影等活动的默认应用程序吗？(default apps)是否要将新应用设置为特定文件类型(file type)的默认应用，例如带有PNG 文件(PNG file)扩展名的图像？您是否需要为特定协议使用新的默认应用程序？(default app)然后，您很幸运，因为我们可以向您展示如何更改Windows 10中的默认应用程序(default apps)，以满足您的任何需求。该指南既长又全面，让我们开始吧：
在哪里可以找到Windows 10中的默认应用设置(Windows 10)
要更改Windows 10中使用的默认应用程序(default apps)，您需要打开设置(Settings)。然后，转到应用程序(Apps)。
在左侧的列中，单击或点按(click or tap) “默认应用”。("Default apps.")
如何为电子邮件、地图、音乐播放器(music player)、照片查看器(photo viewer)、视频播放器(video player)和网络浏览器设置默认应用程序(default apps)
要更改任何这些类型的活动的默认(default app)应用程序，请单击现有的默认应用程序(default app)。然后，在显示的列表中，单击或点击要设置为默认的应用程序。
您选择的应用程序立即成为该类型活动的新默认应用程序。
如何从Windows 10重置(Windows 10)默认应用(default apps)
如果您改变主意，并且不想将一个或多个应用程序用作某些活动的默认设置，您可以重置Windows 10。当您这样做时，它仅使用Microsoft推荐的默认值：Mail、Maps、Groove Music、Photos、Movies & TV和Microsoft Edge。为此，请转到"Settings -> Apps -> Default apps."然后，向下滚动默认应用(default apps)列表，直到找到重置(Reset)按钮。
单击或点击重置(Reset)，您的 Windows 10 默认应用程序将立即重置为前面提到的应用程序。
如何按文件类型(file type)（扩展名）设置Windows 10 默认应用(default apps)
在默认应用程序(Default apps)设置中，向下滚动直到看到显示“按文件类型选择默认应用程序(Choose default apps by file type,")”的链接，然后单击或点击它。
这将打开一个长列表，其中包含在Windows 10(Windows 10)中注册的所有文件扩展名。对于每个，您都会看到已设置的默认应用程序。(default app)如果未设置默认值，您会看到一个 + 号，然后是“选择默认值”。(Choose a default.")
向下滚动(Scroll)文件扩展名列表，直到找到您要查找的扩展名。知道此列表按字母顺序排列会有所帮助。当您找到要配置的文件类型时，单击其(file type)默认应用程序(default app)的名称（或选择默认值(Choose a default)）。显示一个应用程序列表，可以打开选定的文件类型(file type)。在该列表中，单击或点击要设置为默认应用的应用。
Windows 10立即应用该设置。对要配置的所有文件类型重复此过程。
如何按协议设置Windows 10 默认应用(default apps)
Windows 10 应用程序不仅可以使用特定的文件类型，还可以使用特定的协议。例如，Skype使用一些文本、音频和视频聊天(audio and video chat)协议，Spotify用户专有协议来打开其用户创建的播放列表，等等。如果您有多个 Windows 10 应用可以使用某个协议，并且您想要更改该协议的默认设置，请转到默认应用设置，如前所示。在那里，向下滚动设置列表，然后单击或点击显示“按协议选择默认应用程序”的链接。(Choose default apps by protocol.")
您会看到在Windows 10中注册的所有协议及其默认应用程序(default apps)的列表。找到您感兴趣的协议并单击其默认应用程序(default app)。将显示一个可以使用该协议的应用程序列表。在该列表中，单击或点击(click or tap)要用作默认应用程序的应用程序。
该协议的默认应用程序(default app)立即更改。
重要提示：(IMPORTANT:)如果您无法选择应用程序作为特定文件类型或协议(file type or protocol)的默认设置，则意味着该应用程序未在Windows 10中正确安装，或者无法使用该file type/protocol。
如何在Windows 10中按应用设置默认值(Windows 10)
Windows 10应用可以使用特定的文件类型列表，这取决于它们的功能以及开发人员对其进行编程的方式。在您的Windows 10 PC 上，您可以让更多应用程序使用相同的文件类型。例如，在Windows 10中，您可以使用以下应用打开JPG图像： (JPG)Photos、Paint、Snip & Sketch、Paint 3D等。一个有用的技巧是单独管理每个应用程序，并设置每个应用程序的默认文件(default file)类型。为此，请转到默认应用程序设置。在那里，向下滚动设置列表，然后单击或点击显示“按应用设置默认值”的链接。("Set defaults by app.")
现在您会看到一个列表，其中包含Windows 10(Windows 10)中安装的应用程序。找到您要更改默认设置的应用程序，单击或点击(click or tap)其名称，然后点击管理(Manage)。
您会看到应用程序可以使用的文件扩展名和协议列表。对于每个，您都会看到Windows 10使用的默认应用程序(default app)。要更改文件类型或协议(file type or protocol)的默认值，请单击或点击(click or tap)为其设置的默认应用程序(default app)（或选择默认值(Choose a default)）。将显示一个列表，其中包含可以打开该文件类型或协议(file type or protocol)的应用程序。在其中，单击或点击要用作新默认值的应用程序。
您的更改会立即应用。对要更改默认设置的所有应用程序、文件类型和协议重复此过程，然后关闭“设置”(Settings)应用程序。
您在Windows 10(Windows 10)中设置了哪些默认应用程序？
在结束本教程之前，请告诉我们它对您有何用处：您是否使用它来更改默认的网络浏览器或媒体播放器(browser or media player)？还是您更改了查看图片的默认应用程序？(default app)在下面发表评论(Comment)并分享您的故事。
The complete guide to setting the default apps in Windows 10
Do you want to know how to change the default apрs υsed by Windows 10 for activities like viewing pictures, or watching moνies? Do you want to set a new app as the default for а particular file type, like images with the PNG file extension? Do you need a new default app to bе used for a specific protocol? Then, you are in luck, as we can ѕhow you how to change the default apps in Windows 10, fоr anything that you wіѕh. The guide is long and comprehensive, so let's get started:
Where to find the default apps settings in Windows 10
To change the default apps that are used in Windows 10, you need to open Settings. Then, go to Apps.
In the column on the left, click or tap "Default apps."
How to set the default apps for email, maps, music player, photo viewer, video player, and web browser
To change the default app for any of these types of activities, click on the existing default app. Then, in the list that is shown, click or tap the app that you want to set as the default.
The app that you chose immediately becomes the new default, for that type of activity.
How to reset the default apps from Windows 10
If you have changed your mind, and you do not want to use one or more apps as the default(s) for certain activities, you can reset Windows 10. When you do that, it uses only the Microsoft recommended defaults: Mail, Maps, Groove Music, Photos, Movies & TV, and Microsoft Edge. To do that, go to "Settings -> Apps -> Default apps." Then, scroll down the list of default apps, until you find the Reset button.
Click or tap Reset, and your Windows 10 default apps are immediately reset to the ones mentioned earlier.
How to set the Windows 10 default apps by file type (extension)
In the Default apps settings, scroll down until you see the link that says: "Choose default apps by file type," and click or tap on it.
This opens a long list with all the file extensions that are registered in Windows 10. For each, you see the default app that has been set. If a default is not set, you see a + sign, followed by "Choose a default."
Scroll down the list of file extensions until you find the one that you are looking for. It helps to know that this list is ordered alphabetically. When you find the file type that you want to configure, click on the name of its default app (or on Choose a default). A list of apps is shown, that can open the selected file type. In that list, click or tap the app that you want to set as the default.
The setting is applied immediately by Windows 10. Repeat this procedure for all the file types that you want to configure.
How to set the Windows 10 default apps by protocol
Windows 10 apps can work not only with specific file types but also with particular protocols. For example, Skype uses a few protocols for text, audio and video chat, Spotify users proprietary protocols to open playlists created by its users, and so on. If you have more than one Windows 10 app that can work with a protocol, and you want to change the default for that protocol, go to the default apps settings, as shown earlier. There, scroll down the list of settings, and click or tap the link that says: "Choose default apps by protocol."
You are shown a list of all the protocols that are registered in Windows 10 and their default apps. Find the protocol that you are interested in and click on its default app. A list of apps is shown, that can work with that protocol. In that list, click or tap on the app that you want to use as the default.
The default app is changed immediately for that protocol.
IMPORTANT: If you cannot choose an app as the default for a specific file type or protocol, it means that the app is not installed correctly in Windows 10, or it cannot work with that file type/protocol.
How to set the defaults by app, in Windows 10
Windows 10 apps can work with a specific list of file types, based on what they do, and on how their developer has programmed them. On your Windows 10 PC, you can have more apps working with the same file types. For example, in Windows 10, you can open JPG images with the following apps: Photos, Paint, Snip & Sketch, Paint 3D, and others. One useful trick is to manage each app individually, and set each app's default file types. To do that, go to the default apps settings. There, scroll down the list of settings, and click or tap the link that says: "Set defaults by app."
Now you see a list with the apps that are installed in Windows 10. Find the app for which you want to change the default settings, click or tap on its name, and then on Manage.
You see a list of file extensions and protocols that the app can work with. For each, you see the default app that is used by Windows 10. To change the default for a file type or protocol, click or tap on the default app set for it (or on Choose a default). A list is shown with the apps that can open that file type or protocol. In it, click or tap the app that you want to use as the new default.
Your changes are applied immediately. Repeat the process for all the apps, file types, and protocols for which you want to change the default, and then close the Settings app.
Which default apps have you set, in Windows 10?
Before closing this tutorial, tell us how it was useful to you: did you use it to change the default web browser or media player? Or did you change the default app for viewing pictures? Comment below and share your story.
