Mac Error 0x104: Causes and Solutions

Mac error 0x104 is a common issue that users encounter while trying to install or update macOS software. This error typically manifests as a pop-up message stating "An error occurred while installing macOS" followed by the error code 0x104.

What Causes Mac Error 0x104

The root cause of this error is often related to corrupted system files, insufficient storage space on your hard drive, or problems with the installation media itself (like a USB drive). It can also be triggered by incompatible software or hardware configurations.

Affected Operating Systems

Mac error 0x104 primarily affects macOS operating systems, including older versions like High Sierra and Mojave, as well as newer releases like Catalina and Big Sur.

Programs Often Affected

While this error can arise during general system updates, it's frequently encountered when attempting to install or update specific applications, such as:

  • Xcode
  • Final Cut Pro
  • Logic Pro

How to Solve Errors

Try these solutions to fix the Mac error 0x104:

Verify Disk Permissions

Open Terminal and execute the following commands:

  • diskutil verifyPermissions /
  • diskutil repairPermissions /

Free Up Disk Space

Use the Storage Management tool (accessible through Apple Menu > About This Mac > Storage) to identify and remove unnecessary files, applications, or data. Aim for at least 10GB of free space.

Download a Fresh macOS Installer

Download the latest version of macOS from the App Store. Create a bootable USB drive using Disk Utility. Boot your Mac from this USB drive and attempt the installation again.

Reset SMC and NVRAM

  • Shut down your Mac completely.

  • Press and hold the Shift, Control and Option keys simultaneously. While holding these keys, press and hold the power button for 10 seconds.

  • Release all keys and press the power button to turn on your Mac.

Run Apple Diagnostics

Restart your Mac while holding down the D key. This will initiate Apple Diagnostics, a built-in tool that can identify hardware issues. Follow the onscreen instructions.

Contact Apple Support

If none of the above solutions resolve the error, it's recommended to contact Apple Support for further assistance. They may be able to diagnose specific issues and provide tailored solutions based on your Mac model and software configuration.

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