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How to fix error File system verify or repair failed?

Mac is could not be installed on your computer. File system verify or repair failed. Quit the installer to restart your computer and try again. I am trying to install High Sierra on a 2014 MacBook Pro. El Capitan. I backed it up to a 1 terabyte external hard drive with Time Machine. The installer is running on a loop. I need specific and clear instructions. Not a happy camper right now.

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iBoysoft author Eudora Liu

Eudora Liu

Answered on Monday, April 29, 2024

To fix the error "File system verify or repair failed.:(69845)", you need to ensure the type of this error and whether the error is on your external hard drives or internal hard drives.

When this error occurs on your MacBook, you may see the below exit codes showing up:

File system verify or repair failed.:(69845) can happen on the internal or external hard driveUSB flash drive, or SD card on a Mac running any version of macOS. It may be caused by the file system corruption on the drive.

You can try the following methods to fix this error in external hard drives and rerun First Aid in Disk Utility until error 69845 is fixed.

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