如何从Mac OS完全删除程序

要完全卸载macOS上的程序，必须手动删除应用及其关联文件；首先将应用从“应用程序”文件夹拖到废纸篓，然后通过“前往文件夹”删除~/Library/Application Support、~/Library/Preferences、~/Library/Caches、~/Library/Containers和~/Library/Logs中相关的支持文件，接着在系统设置中移除登录项，在浏览器中删除相关扩展，必要时使用AppCleaner等第三方工具自动扫描残留文件，最后清空废纸篓以彻底删除所有文件，这样才能确保程序被完整移除并避免占用空间或引发冲突。

Uninstalling a program on macOS isn’t always as simple as dragging the app to the Trash. Many apps leave behind support files, preferences, caches, and other data that can take up space or cause conflicts. To completely remove a program from macOS, follow these steps:

1. Remove the App from Applications

Start with the basics:

• Open Finder.
• Go to the Applications folder.
• Locate the app you want to remove.
• Drag it to the Trash, or right-click and select Move to Trash.

⚠️ This removes the main app, but not all associated files.

2. Delete Related Support Files and Preferences

Apps often store data in hidden folders in your user directory. Here’s where to look:

Open Finder, then press Shift Command G to bring up “Go to Folder,” and enter each of the following paths one by one:

~/Library/Application Support/

~/Library/Application Support/

Look for a folder with the app’s name or developer and delete it.

~/Library/Preferences/

~/Library/Preferences/

Search for .plist files related to the app (e.g., com.company.appname.plist).

~/Library/Caches/

~/Library/Caches/

Delete any cache folders associated with the app.

~/Library/Containers/ (for sandboxed apps)

~/Library/Containers/

Some apps (especially from the Mac App Store) store data here.

~/Library/Logs/

~/Library/Logs/

Remove any app-specific log folders if present.

? Tip: The ~ means your user home folder. These Library folders are hidden by default in newer macOS versions, which is why you need to use “Go to Folder.”

3. Check for Login Items and Extensions

Some apps add themselves to start automatically or install system extensions.

Remove Login Items:

• Go to Apple Menu > System Settings (or System Preferences).
• Click General > Login Items.
• Select any entries related to the app and click the – button to remove.

Remove Browser Extensions (if applicable):

• Open Safari, Chrome, or Firefox.
• Go to Extensions or Add-ons.
• Uninstall any extensions tied to the removed app.

Remove Menu Bar or System Extensions:

• Some apps install status menu extras (e.g., in the top-right corner).
• Right-click and see if there’s an option to remove, or check the app’s settings before uninstalling.

4. Use a Third-Party Uninstaller (Optional but Helpful)

If you’d rather not manually hunt down every file, use a trusted uninstaller tool:

• AppCleaner (Free): Lightweight and effective. Just drag the app into it, and it finds related files for deletion.
• CleanMyMac X (Paid): Offers deeper system cleanup, including uninstaller, junk removal, and malware scan.
• AppZapper (Paid): Long-standing favorite for thorough app removal.

These tools automate the process and help ensure nothing is left behind.

5. Empty the Trash

After deleting the app and its files:

• Right-click the Trash icon and select Empty Trash.
• This permanently removes all files.

? If the app required admin rights, you might be prompted for your password during deletion.

Summary Checklist

To make sure you’ve fully removed a program:

• [ ] App moved from Applications to Trash
• [ ] Support files deleted from ~/Library/Application Support
• [ ] Preferences (.plist) removed from ~/Library/Preferences
• [ ] Caches cleared from ~/Library/Caches
• [ ] Containers or extensions removed if applicable
• [ ] Login items disabled
• [ ] Trash emptied

It’s not complicated, but skipping the Library files means you’re not really “completely” removing the app. A little extra effort keeps your Mac clean and running smoothly.

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