刪除不需要的大型舊文件，包括清理Downloads文件夾、審查並刪除Movies、Music和Photos中的無用內(nèi)容，並清空廢紙簍（可按Option鍵實(shí)現(xiàn)立即清空）；2. 使用macOS內(nèi)置的存儲管理工具（通過“關(guān)於本機(jī)”>“存儲空間”>“管理”訪問），啟用iCloud存儲、優(yōu)化存儲、自動(dòng)清空廢紙簍及減少雜亂功能來識別並清理大文件和重複項(xiàng)；3. 清理系統(tǒng)垃圾和緩存文件，包括用戶緩存（~/Library/Caches）、日誌文件（~/Library/Logs）以及舊的iOS設(shè)備備份（位於~/Music/iTunes/iTunes Backups或~/Music/Finder Backups），注意僅刪除內(nèi)容而非整個(gè)文件夾；4. 徹底卸載不常用的應(yīng)用程序，使用AppCleaner或手動(dòng)刪除應(yīng)用程序及相關(guān)支持文件（如Application Support、Preferences和Caches中的條目），同時(shí)移除安裝包（.dmg文件）；5. 管理佔(zhàn)用大量空間的Photos和Messages應(yīng)用，啟用“優(yōu)化Mac存儲空間”功能，並將消息保留時(shí)間設(shè)為30天或1年，手動(dòng)刪除大附件；此外，建議將不常訪問的文件遷移到外部硬盤或iCloud Drive、Google Drive、Dropbox等雲(yún)存儲服務(wù)以釋放本地空間，定期維護(hù)可有效保持Mac運(yùn)行流暢。

Running out of disk space on your Mac can slow things down and make it harder to save new files. The good news is there are several effective ways to free up space—many of which don't require any third-party tools. Here's how to reclaim valuable storage.

1. Delete large and old files you no longer need

One of the quickest ways to free up space is removing large files that are taking up room but aren't essential.

• Check Downloads folder : This is often a dumping ground for installers, zip files, and documents. Sort by size or date and delete what you don't need.
• Review Movies, Music, and Photos : Look for duplicate or low-quality videos, old podcasts, or music files you no longer listen to.
• Empty the Trash : Files deleted from Finder go to the Trash, but they still take up space until you right-click Trash > Empty Trash .

Pro tip: Hold Option while right-clicking the Trash icon to see “Empty Trash Immediately” — this skips the confirmation.

2. Use built-in Storage Management tools

macOS includes a helpful tool that breaks down what's using your storage and offers cleanup suggestions.

• Go to Apple menu > About This Mac > Storage > Manage .

  

• You'll see four key recommendations:

  • Store in iCloud : Move files to iCloud and keep only recent or frequently used ones on your Mac.
  • Optimize Mac Storage : Automatically removes watched movies and TV shows, and manages email and photo storage.
  • Empty Trash Automatically : Turns on auto-emptying of Trash after 30 days.
  • Reduce Clutter : Browse through files sorted by size and date, and delete what's no longer needed.

This tool is especially useful for identifying large files and duplicates across your system.

3. Clear system junk and cache files

Over time, macOS and apps build up cache files, logs, and temporary data that can take up gigabytes.

• User cache : Navigate to ~/Library/Caches (press Cmd Shift G in Finder and type that path). You can safely delete contents of most folders here.
• Log files : Go to ~/Library/Logs and clear out old logs if needed.
• iOS backups (if you used iTunes) : These can be huge. Go to ~/Music/iTunes/iTunes Backups (or ~/Music/Finder Backups on newer macOS) and remove old device backups.

?? Be careful not to delete entire folders—just their contents, and only if you're sure.

4. Uninstall unused apps and remove leftovers

Deleting apps from the Applications folder doesn't always remove all associated files.

• Properly uninstall apps : Use a tool like AppCleaner (free) to drag an app in and delete it along with its support files.
• Or manually check:
  • /Applications
  • ~/Library/Application Support/
  • ~/Library/Preferences/
  • ~/Library/Caches/

Also, remove old app installers (.dmg files) and uninstall apps you haven't used in months.

5. Manage Photos and Messages

These two apps often silently eat up space.

• Photos : If you have "Optimize Mac Storage" off, your full library lives on your drive. Turn it on via Photos > Preferences > iCloud .
• Messages : Go to Messages > Preferences > General and set "Keep messages" to 1 year or 30 days instead of forever. Also delete large attachments manually.

Bonus: Use external storage or cloud services

If your drive is still tight, consider offloading files:

• Move old projects, photos, or videos to an external hard drive.
• Use iCloud Drive, Google Drive, or Dropbox to store files you don't access daily.

Basically, freeing up space on Mac comes down to deleting what you don't need, cleaning hidden junk, and using built-in tools wisely. A little maintenance every few months can keep your Mac running smoothly.

以上是如何在Mac上釋放磁盤空間的詳細(xì)內(nèi)容。更多資訊請關(guān)注PHP中文網(wǎng)其他相關(guān)文章！