To avoid data loss, you must back up your Mac or the external storage device before performing the erase operation. So, you lose access to all your files from the drive. The Erase operation replaces the old file system of the storage drive with a new one.
Master Boot Record: Prefer this scheme for compatibility with Windows-based PC.Īpple Partition Map: Use this scheme for compatibility with old PowerPC-based Mac. Even, some latest Windows PCs use this scheme. GUID Partition Map: Select this scheme for all Macs that are based on Intel and Apple Silicon. Disk Utility provides the following three schemes: You need to enter a few details such as name, format, and scheme before you erase the storage medium. The Erase feature of Disk Utility allows you to format your Mac hard drive with a new file system. Disk Utility is a native macOS application that offers multiple storage disk management features, such as First Aid, Partition, Erase, Restore, Unmount, and Info.
