iTunes是很好的软件，可以用来下载音乐、视频和游戏，并导入到电脑或iPhone上。不过很不幸，iTunes有时很受技术问题的困扰，总是突然卡住，没响应了。你需要重装该软件，来对付这个问题。安装的步骤其实很简单，也不用花你很多时间哦。
步骤
方法 1 的 3:
在PC电脑上完全删除iTunes
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1
打开控制面板。打开开始菜单，在右边一列找到它，点击打开，找到“程序”下的“卸载程序”，点击打开。
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2
卸载所有iTunes的下载文件。你会看到一系列按字母排序的程序列表，右键点击，选择卸载即可。要正确卸载iTunes，你需要按照下列顺序卸载才行：iTunes，quicktime，苹果软件更新，苹果移动支持，bonjour，苹果应用支持（版本9或更新版本）
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3
确认所有程序都卸载了。到我的电脑，选择C盘，如果还有刚刚卸载程序的快捷方式文件夹，在这里就把它们彻底删除掉。如果找不到，则已经完全删除了。
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4重启电脑
方法 2 的 3:
在Mac中完全删除方法
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1
把iTunes拖入垃圾箱。把桌面图标拖入垃圾箱内，接着清空垃圾箱。如果你发现之后还有程序的残余文件，就按照以下步骤：
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2
打开活动监视器。找到iTunes帮手，在登录项目中删掉它。
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3
确认删除成功。回到库/偏好设置文件夹，把所有含有com.apple.itunes 开头的文件删掉。
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4
把iTunes删掉，并删除苹果移动设备服务的文件夹。你可以在库里找到，拖到垃圾箱即可。之后要确保清空垃圾箱哦。
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5
重启电脑。把所有iTunes软件或下载文件删除以后，现在重启，可以重装iTunes了。
方法 3 的 3:
重装 Itunes
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1
获得安装程序。到苹果官网，下载免费iTunes安装器。指定下载位置，花几分钟下载到电脑上，把它下载好。
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2
打开安装程序。完成下载，运行程序，在出现的对话框中一直按“下一步”，一直到条款页面，然后确认条款，再点击“下一步”。
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3
选择安装选项。下面几页会问你基本的安装事项。选择是否让iTunes作为默认播放器、默认语言是什么、安装文件夹在哪等等。
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4
完成安装。把所有的对话框选项完成以后，点击“完成安装”。
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5
重启电脑。要完成安装，重启电脑，然后打开iTunes测试一下是否安装成功。
小提示
- 如果你定期更新iTunes，来获得新功能，是个很好的做法。
- 在电脑上彻底卸载iTunes以后，可能需要给iPhone或iPod重装其他相关的苹果程序。