Click 'Erase' and then 'Erase' again in the confirmation window.

The more times the data is overwritten, the more secure the format, but the longer it takes. Optionally, enter a name for the drive in the 'Name' field.Ĭlick 'Security Options' if you want to completely erase existing data by overwriting it once, seven times or 35 times. Make sure to select the rootįolder and not an indented entry under it.Ĭlick the 'Format' drop-down menu and select hfs+ file system. Insert the USB flash drive into your Mac's USB port.Ĭlick ' Finder > Applications > Utilities > Disk Utility.' Alternatively, enter ' Disk Utility' in the search bar and click 'Disk Utility' to launch the application.Ĭlick the USB flash drive from the left pane of Disk Utility. If the issue still persists please change device file system: Uncheck Devices -> External Devices -> your device. NOTE: you may need to unplug from the Mac and plug back again. To pass it back to the Mac you need to uncheck Devices -> External Devices -> your device. NOTE: If the device is not recognized, you need to unplug it from the Mac and plug back again. In the Parallels Desktop menu bar go to Devices -> External Devices -> Check your device So, you need to pass the device inside the virtual machine every time you would like to copy something on the drive. The cause of the issue is that Mac OS X does not support writing permissions for NTFS file system.

Unable to write on the Seagate Backup Plus Drive.

Unable to write on the external hard drive with NTFS file system.

Macos ntfs external drive