![]() ![]() ![]() Windows prefers to use NTFS (which stands for New Technology File System, though it has been around for nearly 20 years now). Finally, Mac OS X’s Time Machine backup utility won’t work with FAT32. When formatting partitions, Windows 7’s Disk Management utility won’t let you create one that’s larger than 32GB, whereas Mac OS X Lion can create partitions as large as 2TB using its Disk Utility application. So if you work with bulky video clips, for example, adopting FAT32 may not be a good idea. FAT32 imposes a size limit of 4GB on single files. The chief drawbacks of FAT32 involve file and partition size limitations. Though this format has some limitations, it enjoys nearly universal support from active platforms, including Mac and Windows operating systems, and many gaming and Linux OSs. If the Security Options button is not available, Disk Utility cannot perform a secure erase on the storage device.Looking to share an external hard drive between a Mac and PC? The best way to do it is with a drive formatted as FAT32. Secure erase options are available only for some types of storage devices. (Optional) If available, click Security Options, use the slider to choose how many times to write over the erased data, then click OK. ![]() If the Scheme pop-up menu isn’t available, make sure you selected the storage device you want to erase-it’s at the top of the hierarchy.Ĭlick the Format pop-up menu, then choose a file system format. Ĭlick the Scheme pop-up menu, then choose GUID Partition Map. In the sidebar, select the storage device you want to erase, then click the Erase button. If you want to erase any other type of storage device: Double-click Disk Utility in the /Applications/Utilities folder. Note: If you want to get your Mac ready to trade in, sell, or give away, and your computer is a Mac with Apple silicon or an Intel-based Mac with an Apple T2 Security Chip, use Erase Assistant. ![]()
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