This article explains about file systems and provides instruction to format a drive on Windows and Mac. virtual machine and try to convert Mac OSX DMG files to ISO so that you can use it on Windows platform. But in order for the computer and drive to communicate with one another, the drive has to be formatted with the correct file system. A DMG file is a Mac OS X system disk image file. You'll see the MacOS Utilities window choose 'Disk Utility.' Now you can choose to erase your startup drive, and choose 'Mac OS Extended (Journaled)' as the operating system. A drive can be used on any type of computer - PC or Mac. To get around that problem, hold down the Command + R keys when you turn on your Mac and let go when the logo appears. If you want to format your Mac's system drive, you can't do that when the Mac is running normally because the drive is in use by the operating system.
Usually, you'll want ExFAT, which is the default for the MacOS. Select the drive you want to format and then choose “Erase.”Ĥ. At the top of the window, click 'Erase.'ĥ. In the pop-up window, choose the file system you want to use. Newer Seagate and LaCie branded external drives come preformatted with the exFAT file system, which allows it to be used on both Mac and Windows without.
