How do I format my external hard drive with my macbook
Disclaimer: the following process will reformat your external drive, and also erase all the data on it. There is no possible way to reformat the drive while retaining the data, as reformatting requires erasing.
Press cmd+space to open up spotlight (or just click the magnifying glass in the upper right corner)
Type "disk utility" and the first result should be an app called "Disk Utility" and has the icon of a hard drive with a stethoscope. Hit enter.
Connect the hard drive to your computer, and you should see it pop up in the box on the left side of the window.
You should actually see two things: a disk icon with the size of the drive and maybe the brand and, below it and slightly indented, a disk icon with the hard drive's name next to it. That's the one you want to click on.
In the top middle of the window, you should see an "Erase" tab. Click on it.
Pick "Mac OS Extended"* in the Format drop down
Rename it if you want to in the Name text box
Click the "Erase" button
It will then reformat the drive to be compatible with Macs.
*Use Mac OS Extended if you plan on using it to store files. If you want to install Mac OS X on it, choose "Mac OS Extended (Journaled)". If you want to be able to access the files from a PC running Windows, you should choose "MS_DOS (FAT)", though I would not recommend doing that if you don't have to, because it is rather slow.
Sep 12, 2011 |
Iomega Prestige 1 TB USB 20 Hard Drive