The recovery partition is an essential part of macos, offering a way to troubleshoot, reinstall the OS, and restore backups without external tools. But what happens if it's missing, or you need to modify it? Whether you’re customizing your drive or facing recovery issues, this guide will walk you through the step-by-step process of creating, deleting, and recovering the Mac recovery partition. We’ll also explore how to maintain your Mac’s health so your recovery partition is always ready when you need it.

内容： Part 1: What Is the Mac's Recovery Partition?Part 2: How to Check If the Mac's Recovery Partition ExistsPart 3: How to Create a Mac's Recovery PartitionPart 4: How to Delete the Mac's Recovery PartitionPart 5: Bonus – Keep Your Mac System Healthy第6部分：最后的想法

Part 1: What Is the Mac's Recovery Partition?The Mac recovery partition is a hidden portion of your Mac’s internal storage. Introduced in macOS Lion (2011), it includes vital recovery tools like:

重新安装macOS

Restore from Time Machine backups

磁盘工具

Safari浏览器

Terminal for advanced commands

It’s automatically created during macOS installation and remains invisible under regular usage. However, partition changes, formatting, or dual-booting setups can remove or damage it, leading to problems during emergencies.

Part 2: How to Check If the Mac's Recovery Partition ExistsBefore creating or recovering, first check whether your Mac recovery partition already exists.

方法二：使用终端

可选 终端 从应用程序 > 实用程序。

类型： diskutil list

Look for a volume labeled “Recovery” or “Apple_Boot Recovery HD.”

Method 2: Use Startup Command

重新启动您的Mac。

举行 命令+ R during boot (for Intel Macs) or press and hold the 电源按钮 for Apple Silicon Macs.

If macOS Utilities loads, your recovery partition is intact.

If nothing happens, or you’re taken to a normal login screen, your Mac recovery partition is likely missing or corrupted.

Part 3: How to Create a Mac's Recovery PartitionIf the Mac recovery partition is missing, you can recreate it using several methods:

Option 1: Reinstall macOSThe simplest method to recreate the partition:

引进 Internet Recovery. If you are using Intel: 命令+选项+ R. For Apple Silicon: Press and hold 电力, then click “Options”

Choose “Reinstall macOS”

The process will recreate the recovery partition automatically

Option 2: Use Terminal with macOS Installer

打开终端

Run: sudo /Applications/Install\ macOS\ Ventura.app/Contents/Resources/createinstallmedia --volume /Volumes/MyDrive

Boot from the installer and reinstall macOS

This method rebuilds system files, including the recovery partition.

Part 4: How to Delete the Mac's Recovery PartitionAdvanced users or developers may want to delete the Mac recovery partition, usually to repurpose space or avoid conflicts in multiboot setups.

Boot into macOS

可选 终端

Type: diskutil list

Run: sudo diskutil eraseVolume "Free Space" %noformat% /dev/diskXs3

更换 /dev/diskXs3 with the correct identifier.

This will free the space, removing the recovery partition. Be sure to back up first.

Part 5: Bonus – Keep Your Mac System HealthyThe health of your Mac's drive directly impacts the integrity of the Mac recovery partition. Junk files, bloated apps, or system clutter can cause instability or even partition damage. Regular maintenance keeps your Mac recovery tools functional. iMyMac PowerMyMac is an all-in-one performance and cleaning toolkit built specifically for macOS.

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主要特征：

智能清洁剂: Clears caches, logs, and temp files

App卸载程序: Fully removes unwanted apps and related files

扩展管理器: Disables login items that slow down your Mac

重复查找器： 识别和 删除重复的照片、文档和下载内容都会悄悄占用存储空间。

磁盘空间分析器: Locates and clears large, unused files

性能监视器: Monitors CPU, memory, and storage in real time

第6部分：最后的想法The Mac recovery partition is one of macOS's most powerful features, yet often misunderstood. Whether you need to create, delete, or recover it, having the right knowledge and tools puts you in control of your Mac.

Always back up before making major changes, and keep your system healthy with tools like iMyMac PowerMyMac. With a little proactive care, you’ll avoid the stress of system failures and ensure your Mac is always ready to recover, reinstall, or restore—right when you need it most.

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