如何在Mac电脑上检查和安装更新

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共同创作者是 Luigi Oppido

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软件更新是为了保障电脑和程序安全、修复错误并提供新功能。你安装的许多软件都会定期更新，以提升功能。苹果也会推出系统更新，用以保障Mac电脑的安全和稳定。当新的OS X版本推出时，你可以从App Store免费下载升级包。如果你用的是旧版OS X，那就得通过 “软件更新”实用程序进行更新。

方法 1
方法 1 的 5:

更新App Store应用程序和系统软件

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    Apple菜单位于屏幕左上角。然后你就可以通过App Store检查已安装的软件是否有最新版本，以及安装OS X安全性和稳定性更新。这些变化是从OS X Yosemite开始的。如果你的电脑运行的旧版OS X，那么请参阅方法5“在旧版OS X安装更新”。 [1]
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    这个按钮位于App Store窗口顶端，而且它还会显示可用更新的数量。
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    系统会立刻下载更新，并在下载完毕后马上进行安装。
    • 所有可用的软件和系统更新都会在这里列出。
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    如果有许多更新，你可以点击“全部更新”，一次下载并安装所有的更新。
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    有些最新版本的更新必须先安装上一个版本才会出现。在安装了所有更新后，再次打开“更新”选项卡，看看是否还有其他可用更新。
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方法 2
方法 2 的 5:

启用自动更新

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    启动自动更新应用程序和系统的功能，这样就不需要自己检查，而且还能确保软件始终是最新和安全的。 [2]
    • Apple菜单位于屏幕左上角。
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    这允许系统自动检查、下载和安装与软件、系统及安全相关的更新，频率是每天一次。
  5. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/5\/5c\/Check-for-and-Install-Updates-on-a-Mac-Computer-Step-10-Version-2.jpg\/v4-460px-Check-for-and-Install-Updates-on-a-Mac-Computer-Step-10-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/5\/5c\/Check-for-and-Install-Updates-on-a-Mac-Computer-Step-10-Version-2.jpg\/v4-728px-Check-for-and-Install-Updates-on-a-Mac-Computer-Step-10-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    如果有，系统就会立刻进行下载和安装。
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方法 3
方法 3 的 5:

不通过App Store更新已安装的应用程序

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  1. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/7\/7a\/Check-for-and-Install-Updates-on-a-Mac-Computer-Step-11-Version-2.jpg\/v4-460px-Check-for-and-Install-Updates-on-a-Mac-Computer-Step-11-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/7a\/Check-for-and-Install-Updates-on-a-Mac-Computer-Step-11-Version-2.jpg\/v4-728px-Check-for-and-Install-Updates-on-a-Mac-Computer-Step-11-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    许多从网站下载或用光盘安装的应用程序都有内置的“检查更新”功能。在“帮助”或“文件”菜单中查看是否有这项功能。根据指示检查并安装任何可用更新。你可能需要先卸载软件，然后才能安装最新版本。
    • 不是所有软件都有这项功能。
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    一些开发者会在自己的网站上发布软件补丁。浏览有关软件的主页，查看“消息”或“下载”部分，看看是否有可用的新版本。
    • 你通常可以在“帮助”菜单里的“关于”部分找到软件的网站链接。
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    某些从网上下载的应用程序没有更新选项，需要自己手动下载并安装最新版本。
    • 从有关程序的网站上下载最新版本的安装包。
    • 将之前已安装的程序从“应用程序”文件夹拖放到“废纸篓”。这样会删除程序，但通常还会保留里面的个人设置。
    • 运行下载好的安装包，将软件拖放到“应用程序”文件夹里，就会开始安装最新版本。
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方法 4
方法 4 的 5:

升级到更新的OS X版本

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  1. {"smallUrl":"https:\/\/www.wikihow.com\/images_en\/thumb\/4\/4d\/Check-for-and-Install-Updates-on-a-Mac-Computer-Step-14-Version-2.jpg\/v4-460px-Check-for-and-Install-Updates-on-a-Mac-Computer-Step-14-Version-2.jpg","bigUrl":"https:\/\/www.wikihow.com\/images\/thumb\/4\/4d\/Check-for-and-Install-Updates-on-a-Mac-Computer-Step-14-Version-2.jpg\/v4-728px-Check-for-and-Install-Updates-on-a-Mac-Computer-Step-14-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><\/div>"}
    升级到最新版本的OS X是免费的，通常建议升级，以使用新功能和增强安全性。你可以在Mac电脑上的App Store下载这些升级包。
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    如果你还没有升级，它通常会出现在“特色应用”（Featured）选项卡的最顶端。如果找不到，它应该会出现在“特色应用”页面右边“快速链接”（Quick Links）部分的顶端。你也可以搜索它的发布名称。 [3]
    • 目前最新版本的OS X是2017年发布的“High Sierra”。
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    新发布的OS X相当大，可能需要好几个小时才能完成下载。
    • 如果网速不快或者不想超出带宽上限，你可以把Mac电脑带到任何一家Apple Store零售店享受免费升级。
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    如果下载完毕后没有自动进行安装，你可以手动运行出现在“应用程序”目录中的安装包，开始升级过程。
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    安装开始之前，屏幕会先出现几个画面解释条款声明等。大多数用户都不用更改任何信息，看完这些画面就可以开始安装。
    • 升级不会影响你的个人文件或程序。
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    升级通常需要20到30分钟，完成后Mac电脑会重启。升级后，你还是可以在原来的位置找到所有文件和程序。
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方法 5
方法 5 的 5:

在旧版OS X安装更新

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    这会打开一个新窗口，检查是否有可用的系统更新。
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    你可以自己安排电脑自动检查更新的频率，或者选择自动检查并下载可用的更新。
    • 选择“检查更新”，然后选取检查频率，可以选择每天、每周或每月检查一次。
    • 如果你要电脑自动检查和安装可用的更新，那就选择“自动下载更新”按钮。更新完成后，你可能需要重启电脑。
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    检查更新后，页面上会列出可以安装的更新。每项更新旁边都有一个复选框。勾选你想下载和安装的每一项更新。
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    系统会提示你输入管理员密码。之后才会开始下载和安装更新。
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    “软件更新”窗口不会检查App Store应用程序是否有可用更新。你需要自己在App Store检查这些。
    • 从Dock中打开App Store。
    • 点击“更新”选项卡。
    • 点击可用更新旁边的“更新”按钮，或者选择“全部更新”，一次过下载所有可用更新。
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参考

  1. ↑ https://support.apple.com/en-us/HT201541
  2. ↑ http://osxdaily.com/2014/11/01/automatic-install-os-x-updates-mac/
  3. ↑ http://www.apple.com/osx/how-to-upgrade/

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