苹果电脑系统损坏怎么把资料拷贝出来_苹果电脑系统坏了怎么考

2024-05-23 03:15:25

好多年没玩苹果的电脑了，没记错的话开机按住option+R键，帮你找了下：参考苹果官网：

Reinstall from macOS Recovery

macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu in the menu bar. This menu is also available in macOS Recovery.

1. Start up from macOS Recovery

To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following combinations on your keyboard. Command-R is generally recommended, especially if you never installed macOS Sierra 10.12.4 or later.

Command (?)-R

Install the latest macOS that was installed on your Mac.

Option-?-R

Upgrade to the latest macOS compatible with your Mac.

Shift-Option-?-R

Install the macOS that came with your Mac, or the closest version still available.

Release the keys when you see the Apple logo, a spinning globe, or a prompt for a firmware password. When you see the Utilities window, you've started up from macOS Recovery.

macOS Utilities window

2. Decide whether to erase (format) your disk

If you need to erase your disk before installing macOS, select Disk Utility from the Utilities window, then click Continue. You probably don't need to erase, unless you're selling or giving away your Mac or have an issue that requires you to erase. Learn more about when and how to erase.

3. Install macOS

After starting up from macOS Recovery, follow these steps to install macOS:

Choose Reinstall macOS (or Reinstall OS X) from the Utilities window.

Click Continue, then follow the onscreen instructions to choose your disk and begin installation.

If the installer asks to unlock your disk, enter the password you use to log in to your Mac. If it doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk.

macOS installer window

Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

If your Mac restarts to a setup assistant, but you're selling or giving it away, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.

第一步：升级前备份系统。

通常来说，升级Mac OS系统不会出现什么问题，但为了预防万一，我们最好还是先使用NB的Time Machine备份一下整个系统，方便出错的时候恢复，如下图所示：

第二步：备份系统完成之后，我们进入App Store，然后找到苹果推送的免费OS X Mavericks升级信息，如下图：

第三步：之后我们点击免费升级后，会弹出登录Apple ID对话框，我们输入自己的账号密码登录即可。

第四步：随后系统即可自动下载最新的 10.10 系统，可以在 App Store 中的“已购项目”中找到它，可以看到它的下载进度。

第五步：系统安装，不论是APP store的更新或者是有安装程序安装，打开之后如下图步骤进行安装。

第六步：随后是选择要安装的磁盘，好了以后需要输入当前用户的登录密码。

第七步：接下来等待处理一下，会提示需要重新启动系统，点击“重新启动”按钮继续。

当要进行系统更新时，确保电脑电量保证50%以上，或者直接链接电源线进行升级，升级一次系统大概要1小时左右。

目前最新的Mac系统是OS?X?10.11?El?Capitan。OS?X?10.11开发者预览版在2015年WWDC大会上发布，此版本旨在修复yosemite的一些漏洞及在功能与性能上做出一些提升。

扩展资料：

macbook是2015年苹果公司出品的笔记本电脑。2015年3月9日，苹果春季发布会在美国旧金山芳草地艺术中心召开。