Introduction Today I'll show you how to fix common errors on your Apple macOS using the built-in Disk Utility tool. If you're experiencing any of the following, Disk Utility should be able to fix it: Single/Multiple apps randomly closing Corrupted files An external device doesn't work properly Computer won't start up You'll need to run Disk Utility on each volume/container on the storage device, then run it on the storage device … [Read more...] about Repair macOS File System Errors with Disk Utility