If you need to back up any information on the drive, first connect your drive to a computer that does recognize the drive and transfer the data to a new storage device. Choose 'Mac OS Extended (Journaled)' to use the default Mac file system format. It means the data on your hard drive will be permanently erased. It can format your hard drive and erase all the data on your hard drive, beyond the scope of data recovery.

AweEraser for Mac is a data erasure application. Click the 'Format' drop-down menu and select the format you want to use. Solution 3: format and erase hard drive under macOS 10.13 High Sierra with AweEraser for Mac. Select your hard drive from the list and click the 'Erase' tab. Restart 'Disk Utility' if you had to restart your computer to perform a repair and you still don't see your drive. How to format/erase usb disk or memory card on MAC using Disk Utility Get your device connected to MAC, and backup your data to somewhere else at first as the. You may need to restart your computer and follow the prompts to complete the repair.Ĭlick the 'Finder' icon in the Dock and look for your drive in the sidebar. If the operating system already mounted the drive, an 'Unmount' button displays instead.Ĭlick the 'First Aid' tab and select 'Repair Disk,' if available. Select your hard drive, optical drive or other attached drive in the sidebar. Click 'Go' and select 'Utilities' from the drop-down list. Click the background to bring up the Finder menu in the the top bar.

Mac sierra how to format usb drive