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# Maintaining and Supporting macOS (7 of 7) - Repairs Using the Disk Utility App - The Disk Utility app can be used to repair file system errors and hard drive corruptions - To open Disk Utility, open **Finder**, navigate to the **Utilities** folder, and double-click **Disk Utility** - File...

# Maintaining and Supporting macOS (7 of 7) - Repairs Using the Disk Utility App - The Disk Utility app can be used to repair file system errors and hard drive corruptions - To open Disk Utility, open **Finder**, navigate to the **Utilities** folder, and double-click **Disk Utility** - File systems macOS supports: - **APFS** (Apple File System) - **Mac OS Extended** file system, also called **HFS+** (Hierarchical File System Plus) - FAT32 and exFAT (supported for compatibility with Windows and Linux) - You can use **First Aid** in Disk Utility to scan the hard drive for file system errors