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    Scanning as administrator

    This feature is not available in the Mac App Store edition of DaisyDisk. You can switch to the stand-alone version, free of charge.

    Sometimes you may not be able to examine certain folders, because you don’t have sufficient access permissions. For example, certain system folders and folders of other local users are normally inaccessible, even when you are logged in to your Mac as an administrator.

    In such cases you can scan the target as administrator (also called “as root” or “as super-user”, similar to the command-line tool sudo. Just select the corresponding command from the disk’s or folder’s drop-down menu

    Scan as Administrator menu command

    and enter your administrator’s password, when asked.

    You don’t always have to scan as administrator. The normal scanning is a little faster, and is enough in most cases. Use the administrator mode when the scan results reveal significant amounts of hidden disk space.

    In the latter case, you can significantly save time by selecting the Quick Rescan as Administrator item from the disk’s menu. Holding ⌥ option enables full rescan.

    Scanning as administrator only works on local APFS and HFS+ volumes.

    If you’re getting an error message while attempting to scan as administrator, check out this article.

    Table of Content

    Using DaisyDisk

    • Disk overview, scanning
    • Understanding the disk map
    • Locating space wasters
    • Previewing file content and details
    • Deleting files

    Advanced features

    • Hidden space
    • Purgeable space
    • Other volumes
    • Restricted folders
    • Local APFS snapshots
    • Full Disk Access
    • Scanning as administrator
    • Parallel scanning
    • Scanning cloud storage
    • Keyboard shortcuts and multi-touch gestures
    • Tips & tricks

    License activation

    • Activating the free trial
    • Benefits of buying a DaisyDisk license
    • DaisyDisk editions & license migration
    • Registering your license

    FAQ

    • What is safe to delete?
    • System taking too much space on macOS High Sierra
    • About Apple File System (APFS)
    • Troubleshooting scanning as administrator
    • Undeleting files
    • Time Machine & versions
    • Mismatches with Finder
    • File system not responding (time-out) error
    • Hard links
    • Disk images
    • Problems on remote desktop

    See also

    • Version 4, English
    • Version 3, English
    • Version 2
      • English
      • Русский
    • Version 1, English
    HomeUser GuideVersion 4EnglishScanning as administrator

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