应用程序被证明是与软件相关的智能手机上必不可少的东西。没有它们就绝对没有智能手机的用途，因为用户可以通过应用程序在智能手机上执行任务。手机的硬件规格有多好并不重要；如果没有安装应用程序，它是没有用的。开发人员设计(Developers design)应用程序以利用这些硬件规范为特定智能手机的用户提供更好的整体体验。
某些(Certain)基本应用程序已预装在智能手机上。这些应用程序是执行基本功能所必需的，包括电话、消息、相机、浏览器等。除此之外，还可以从Play 商店(play store)下载各种其他应用程序，以提高生产力或自定义Android 设备(Android device)。
就像 Apple为所有运行 IOS 的设备提供“应用商店”一样， (app store)Play Store是 Google 为其用户提供访问各种多媒体内容(multimedia content)的方式，包括应用、书籍、游戏、音乐、电影和电视节目。
有大量第三方应用程序可以从不同的网站下载，即使它们在Play 商店(play store)中不可用。
修复 Android 上未安装应用程序错误(Fix Application not installed error on Android)
Android为这些第三方应用程序提供的各种支持使其容易出现问题。几个 android 用户面临的一个常见问题是“未安装应用程序”(“Application not installed” )错误。下面介绍了一些有关如何解决此问题的方法。
方法一：清除Google Play Store的缓存和数据(Method 1: Clear cache and data of Google Play Store)
(Application cache)可以清除应用程序缓存，而不会对应用程序设置、首选项和保存的数据造成损害。但是，清除应用程序数据将完全删除/删除这些数据，即当应用程序重新启动时，它会以第一次的方式打开。
1. 在您的设备上打开设置(Settings)并转到应用程序或应用程序管理器(Apps or Application Manager)。
2.导航到所有应用程序下的“播放商店” 。( “play store”)
3. 点击应用详情下的存储。(storage)
4.点击清除缓存(clear cache)。
5. 如果问题仍然存在，请选择clear all data/clear storage。
方法 2：重置应用偏好(Method 2: Reset app preferences)
请记住，此方法会重置您设备上所有应用的应用首选项。重置应用偏好后，应用的行为将与您第一次启动时一样，但您的个人数据不会受到影响。
1. 打开您设备上的设置，然后选择(Settings)应用程序或应用程序管理器(Apps or Application Manager)。
2. 在所有应用程序下，点击右上角的更多菜单（三点图标）(More menu (three-dot icon))。
3. 选择重置应用偏好( Reset app preferences)。
方法 3：允许安装来自未知来源的应用(Method 3: Allow installation of apps from unknown sources)
从第三方来源下载的应用程序被视为对您的设备的威胁，这就是默认情况下在Android上禁用该选项的原因。未知来源包括Google Play 商店(Google Play Store)以外的任何东西。
请记住，从不受信任的网站下载应用程序可能会使您的设备面临风险。但是，如果您仍希望安装该应用程序，请按照以下步骤操作。
1. 打开设置并导航到“安全”( “Security”)。
2. 在“安全”下，前往隐私(Privacy)并选择“特殊应用访问”(“Special app access”)。
3. 点击“安装未知应用程序”(“Install unknown apps”)并选择您下载应用程序的来源。
4. 大多数用户从“浏览器”或“Chrome”(“Browser” or “Chrome”.)下载第三方应用程序。
5. 点击您喜欢的浏览器并启用“允许来自此来源”(“Allow from this source”)。
6. 对于运行股票android(stock android)的设备，“安装未知来源的应用程序(install apps from unknown sources)”可以在安全本身下找到。
现在再次尝试安装该应用程序，看看您是否能够在您的 Android 手机上修复应用程序未安装错误。 (fix Application not installed error on your Android phone. )
方法四：检查下载的文件是否损坏或未完全下载(Method 4: Check if the downloaded file is corrupt or not completely downloaded)
(APK)从第三方网站安装的APK文件并不总是值得信赖的。已下载的应用程序可能已损坏。如果是这种情况，请从设备中删除该文件并在其他网站上搜索该应用程序。(device and search)下载前请检查有关该应用程序的评论。
该应用程序也可能未完全下载。如果是这种情况，请删除不完整的文件并(file and download)重新下载。
在APK 文件的(APK file)提取过程(extraction process)中不要乱动你的手机。让它(Just)保持不变，并经常检查它，直到提取过程(extraction process)完成。
方法五：安装应用时开启飞行模式(Method 5: Enable Airplane mode while installing the application)
启用飞行模式(airplane mode)会禁用设备从所有服务接收的所有形式的通信和传输信号。下拉(Pull)通知栏(notification bar)，开启飞行模式(Airplane mode)。一旦您的设备处于飞行模式(Airplane mode)，请尝试安装该应用程序(install the application)。
方法 6：禁用 Google Play 保护(Method 6: Disable Google Play Protect)
这是Google提供的一项安全功能(security feature)，可让您的手机远离有害威胁。任何看起来可疑的应用程序的安装过程都将被阻止。(installation process)不仅如此，启用Google Play 保护(Google Play protect)后，您的设备会不断进行频繁扫描，以检查威胁和病毒。
1. 前往Google Play 商店(Google Play Store)。
2. 点击屏幕左上角(left corner of the screen)的菜单图标(menu icon present)（3 条水平线）。
3.打开游戏保护。(play protect.)
4. 点击屏幕右上角的(right corner)“设置”(“Settings”)图标。
5. 暂时禁用“使用 Play Protect 扫描应用程序”( “Scan apps with Play Protect”)。
6. 安装完成后，再次启用。
如果这些方法都不起作用，则很可能是与设备的操作系统相关的问题。如果是这种情况，建议恢复出厂设置(factory reset)以使一切恢复正常。下载以前版本的应用程序也可能会有所帮助。
推荐的：(Recommended:)
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- 如何更改Android 手机(Android Phone)上的应用程序图标(App Icons)
我们希望此信息有用，并且您能够修复 Android 手机上未安装应用程序的错误(fix Application not installed error on your Android phone)。但是，如果您对本指南仍有任何问题或建议，请随时使用评论部分(comment section)与我们联系。
Fix Application not installed error on Android
Apрlicаtions рrove to be the essential thіngs on a smartphone related to software. There is absolutely no use of a smartphone without thеm as it is through apрs that users can perform tasks on their smartphones. It does not matter how goоd the hardwarе speсifіcations of your phone are; if there are no applications installed, іt is of no use. Develoрers design applications to take advantage of these hardware sрecifiсations to provide a better ovеrall experience for the user of that particular smartphone.
Certain essential apps come pre-installed on the smartphone. These apps are necessary for carrying out basic functions including phone, messages, camera, browser, among others. Apart from these, various other apps can be downloaded from the play store for improving productivity or for customising the Android device.
Just like Apple has an “app store” for all the devices running IOS, Play Store is Google’s way of providing its users access to a variety of multimedia content, including apps, books, games, music, movies and TV shows.
There is an extensive number of third-party apps that can be downloaded from different websites even though they’re not available on the play store.
Fix Application not installed error on Android
The varied support that Android provides to these third-party apps makes it vulnerable to problems. One common issue faced by several android users is the “Application not installed” error. Stated below are a few methods on how to resolve this issue.
Method 1: Clear cache and data of Google Play Store
Application cache can be cleared with no harm being caused to app settings, preferences and saved data. However, clearing app data will delete/remove these entirely, i.e. when the app is relaunched, it opens up the way it did for the first time.
1. Open Settings on your device and go to Apps or Application Manager.
2. Navigate to “play store” under all apps.
3. Tap on storage under app details.
4. Tap on clear cache.
5. If the problem persists, select clear all data/clear storage.
Method 2: Reset app preferences
Keep in mind that this method resets the app preferences for all the apps on you’re device. After resetting the app preferences, applications will behave like the first time you’ve launched it, but none of you’re personal data will be affected.
1. Open Settings on you’re device and select Apps or Application Manager.
2. Under all apps, tap on the More menu (three-dot icon) on the upper right-hand corner.
3. Select Reset app preferences.
Method 3: Allow installation of apps from unknown sources
Applications downloaded from 3rd party sources are considered as a threat to your device which is why the option is disabled on Android by default. Unknown sources include anything other than the Google Play Store.
Keep in mind that downloading apps from non-trusted websites may put your device at risk. However, if you still wish to install the application, follow the steps down below.
1. Open settings and navigate to “Security”.
2. Under “security”, head over to Privacy and select “Special app access”.
3. Tap on “Install unknown apps” and select the source from which you’ve downloaded the application.
4. Most users download 3rd party applications from “Browser” or “Chrome”.
5. Tap on your favourite browser and enable “Allow from this source”.
6. For devices running stock android, “install apps from unknown sources” can be found under security itself.
Now again try to install the app and see if you’re able to fix Application not installed error on your Android phone.
Method 4: Check if the downloaded file is corrupt or not completely downloaded
APK files installed from third-party websites are not always trustworthy. There might be a possibility that the application that has been downloaded is corrupted. If that is the case, delete the file from the device and search for the app on a different website. Do check the comments about the app before downloading.
There might also be a possibility that the app is not completely downloaded. If that’s the case, delete the incomplete file and download it again.
Do not meddle with your phone during the extraction process of the APK file. Just let it be and keep checking on it frequently until the extraction process is complete.
Method 5: Enable Airplane mode while installing the application
Enabling the airplane mode disables all forms of communications and transmission signals that the device is receiving from all services. Pull down the notification bar and enable Airplane mode. Once your device is Airplane mode, try and install the application.
Method 6: Disable Google Play Protect
This is a security feature offered by Google to keep harmful threats away from you’re phone. The installation process of any app that seems suspicious is going to be blocked. Not only that, with Google Play protect enabled, frequent scans of you’re device keeps happening to check for threats and viruses.
1. Head over to Google Play Store.
2. Tap on the menu icon present at the top left corner of the screen (3 horizontal lines).
3. Open play protect.
4. Tap on the “Settings” icon present at the top right corner of the screen.
5. Disable “Scan apps with Play Protect” for a short while.
6. Once the installation is complete, enable it again.
If none of these methods works, it is most likely a problem associated with the device’s operating system. If that’s the case, a factory reset is recommended to bring everything back to normal. Downloading a previous version of the application might also help.
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We hope this information is useful and you were able to fix Application not installed error on your Android phone. But if you still have any questions or suggestions regarding this guide then feel free to reach out using the comment section.
