The key to cleaning disk space is to find and process the main worker files that take up space. First, use the system-owned tools to clean up caches and update residues, such as "disk cleaning" for Windows or "optimized storage" for macOS. Secondly, uninstall infrequently used software and delete the installation package and hidden data folders. Finally, use third-party tools to scan and organize large and duplicate files, move them to external storage or cloud disk, or delete them directly to free up space.
Cleaning up disk space is actually not that complicated. The key is to find the big head that takes up space and handle it reasonably. Most of the time, system caches, temporary files, useless applications and large-scale media files are the main force in "eating" the space. The following methods can help you make room quickly and it is easy to operate.

Clean up the cache and update residues that come with the system
Both Windows and macOS automatically retain update files and temporary caches, which may take up several GB or more over time. For example, Windows' "disk cleaning" tool can help you delete old system update backups, browser caches, recycling bin content, etc.
- Open "This Computer", right-click on the system disk (usually the C disk), and select "Properties"
- Click "Disk Cleanup"
- Check the content you want to delete, including the old version of the file in "System Update Cleanup"
- Just confirm the deletion
macOS can click "Manage" in "About Native" → "Storage", then select "Optimize Storage" or manually clear the cache.

Uninstall unused software and clean up installation packages
Many people forget to uninstall the software after downloading it, or keep programs that have not been used for a long time. These not only take up space, but may also slow down the system operation. Especially installation packages, game mirrors, large-scale development tools, etc., it only takes a few GB at any time.
We recommend that you check regularly:

- Uninstall infrequently used software in Control Panel or "Application Management" in Settings
- Delete old installation packages and compressed packages in the download folder
- Completely clean residual files with tools like Revo Uninstaller
In addition, many software will generate hidden data folders in the user directory, such as .npm
, .vscode
, .cache
, etc., which can also be cleaned as appropriate.
Check and organize large and duplicate files
Sometimes you will find that the disk is almost full, but you don’t know who takes up the space. At this time, you can use some tools to scan which files are the largest. For example, you can use WinDirStat or TreeSize Free on Windows, and DaisyDisk on macOS.
Common large occupants include:
- Videos, photos, music files
- Documents and email attachments that have not been sorted out for many years
- Multiple repeated screenshots and downloads
You can move these files to an external hard drive or cloud drive and delete them locally. If there are a large number of duplicate files, such as photos of the same name but different sizes, you can also use the duplicate file lookup tool to clean it in batches.
Basically, these commonly used methods are not troublesome to operate. The key is to maintain them regularly. Don’t wait until the prompt of “insufficient disk space” pops up before starting.
The above is the detailed content of How to free up disk space?. For more information, please follow other related articles on the PHP Chinese website!

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