Format Drives For Mac

2021年1月25日
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Please see below on how to reformat your external hard drive on Mac and Windows. DISCLAIMER: Please keep in mind that reformatting will result in the loss of all the data on the hard drive so make sure you back up your data elsewhere before starting. How to Reformat in Mac. Step 1: Make sure your external hard drive is attached and mounted to. Disk Utility can be used to format external drives as well. It’s easy to reformat your hard drive using Disk Utility in macOS or OS X. If your Mac doesn’t work, you can do this using a second Mac and an external hard drive caddy. Otherwise, you can skip this step and do it from the Utilities page during the macOS or OS X installation.
Are you planning to sell your Mac and you need to delete the files? Is your Mac’s hard drive defective? Are you planning to convert your hard drive into an external storage unit? Or is your newly bought hard drive pre-formatted for Windows? Whatever the reason, the process on how to format a drive on Mac is one of the easiest solutions you can learn.
It is easy to format your hard drive on Mac using the built-in Disk Utility. However, in cases where you have files and documents still on the drive, re-formatting needs to be your last resort. Try cleaning up your hard drive first by using 3rd party cleaning tools. This will temporarily delete files, unwanted documents, and unnecessary cache files within your unit. And if you really decide to format or re-format the drive, make sure to back up everything first. Formatting a drive is one of the permanent Mac solutions that can totally erase all of your device’s content.Steps To Format A Drive On Mac
Before you start the process, you need to be aware of the different kinds of Mac file systems and format types. Browse through the information below:
*APFS (Apple File System) – This file system is the default format for Macs running on High Sierra. It is new, faster, more efficient, and more reliable. However, you won’t be able to read or write on this drive unless you’re also running High Sierra. Plus, it only works on SSDs and flash storage.
*MacOS Extended (Journaled) or HFS+ – If your Mac is not running High Sierra, the default file system will be MacOS Extended. Windows can also read HFS+ drives but cannot write to the drive.
*MS-DOS FAT or FAT32 – If you regularly share drives between PC and Mac, then this format is perfect for you. Some of the drawbacks of this file system are the 4GB file limit, it has no security, and it is prone to disk errors.
*ExFAT – both Windows and Mac can read this file system and it can store files more than 4GB.
*NTFS – This file format is for Windows but Macs can only read but not write on it.To format your drive, follow these steps:
*Open Finder and click Applications.
*Choose Utilities and then open Disk Utility. You can also use Spotlight to open Disk Utility. All you need to do is press Command + Space and type in Disk Utility.
*The Disk Utility window will show you a list of all the drives on your Mac.
*Choose which drive you want to erase.
*Click Erase.
*A window will pop up asking for the new drive name, format and scheme. Type in your new drive name.
*Disk Utility automatically chooses the file format for your new drive but you can choose which format to use by clicking the Formatting options.
*Once you’ve chosen the format, select GUID Partition Map for Scheme.
*Click the Security Options button to choose how you want the drive to be formatted. The slider goes from Fastest to Most Secure. Fastest means that the header information will be removed but the underlying files will be intact and hidden. This will overwrite the drive once. By sliding to the right, your next option is to overwrite the drive three times. The farthest option to the right is the Most Secure option, which will overwrite the drive seven times. The amount of time needed to format the drive depends on what option you choose, the most secure being the slowest.
*Click Erase again. A progress bar will appear showing how the formatting is going and an estimate of how long it will take to complete and the last step would be to copy your files back to your new drive. If you’re running into errors and your system is suspiciously slow, your computer needs some maintenance work. Download Outbyte PC Repair for Windows, Outbyte Antivirus for Windows, or Outbyte MacRepair for macOS to resolve common computer performance issues. Fix computer troubles by downloading the compatible tool for your device. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy Policy.
Nowadays, when you buy a USB drive, you can use it right out of the box with your Mac. However, unless it’s been designed for use with a Mac, it won’t be formatted using macOS’ preferred file system (either Mac OS Extended or APFS, depending on which version of macOS you’re running).
That’s because most of the computers in the world run Windows, and Windows uses a different file system, usually one known as Fat32. Drives formatted as Fat32 can be read from and written to by macOS, but it’s not optimal and you’re more likely to run into problems than if you use macOS’ native format. So, if you’ve bought a USB drive that’s formatted as Fat32, or any other format other than Mac OS Extended (also known as HFS+) or APFS, here’s how to format a USB drive on Mac. It’s exactly the same procedure if you need to reformat a flash drive on a Mac.How to format a USB drive on a Mac
1. Plug the drive into a USB socket (if you have a recent MacBook or MacBook Pro that only has USB-C connectors, you’ll need a USB-C to USB-A adaptor).
2. Open a new Finder window and click on the drive. Make sure it has no files on it that you need. The process of reformatting it will wipe all the data from it.
3. Once you’ve copied any files you need from the USB drive to your Mac, go to Applications>Utilities and double-click on Disk Utility.
4. Click on the USB drive in the sidebar and then choose Erase from the toolbar at the top of the window.
5. In the window that drops down type a name for the formatted drive in the box next to Name.
6. Choose a format from the dropdown menu.
7. If you have previously stored sensitive data on the drive, click the Security tab.
8. Choose a security level using the slider. The further to the right you move the slider, the more ‘passes’ the erase tool will make and the more securely files will be deleted. However, it also increases the time it takes to format the drive quite considerably.
9. Click Ok then click Erase.
Tip: You don’t need to erase a whole drive to delete files securely. If you have confidential files or sensitive data you need to remove from your Mac completely, you should use CleanMyMac’s File Shredder. It’s specifically designed to securely delete sensitive data and will render it unrecoverable. You can download CleanMyMac X for free here.Which format to choose?
If your Mac is running macOS High Sierra or later, you have two options for file formats: APFS and Mac OS Extended. Which should you choose? The key point is that disks formatted as APFS won’t be recognized by Macs running versions of macOS older than High Sierra. So if you think you might need to plug the USB drive into a Mac running an older version of macOS, format it as Mac OS Extended.
APFS is optimized for SSD (solid state drive) such as flash drives, so if you reformat a flash drive on a Mac, you should definitely choose APFS (unless you plan to use it with a pre-High Sierra Mac, of course). Even on hard drives, however, APFS is faster and more reliable than Mac OS Extended.
Finally, if you plan to use the USB drive as a destination for Time Machine backups, choose Mac OS Extended. Time Machine can’t currently back up to an APFS disk and if you select one for use with Time Machine, it will offer to reformat it as Mac OS Extended. You can, however, backup an APFS formatted disk to a Mac OS Extended Time Machine drive.How to format a USB drive to FAT32 on a Mac
The main reason for formatting a USB drive as Fat32 on a Mac is that you want to be able to use the drive on a Windows PC, as well as a Mac — perhaps to transfer files between the two machines. You may also be preparing the drive for use as, say, a storage device for a media player or to record TV programmes on a TV with a USB port.
The fact that Fat32 can be read from and written to on both Mac and Windows makes it very versatile. However, there is a significant limitation — individual files have a maximum size of 4GB. So, if you’re using the USB drive to store large video files, you may run into trouble. There is a solution, however, exFAT. Unlike FAT32, exFAT doesn’t have a maximum file limit. Better still, it can be read from and written to on any Mac running Mac OS X Snow Leopard or later and on Windows.
To format a USB drive in FAT32 or exFAT:
1. Plug the USB drive into your Mac.
2. Go to Applications>Utilities and launch Disk Utility.
3. Click on the USB drive in the sidebar in Disk Utility.
4. Click Erase in the Disk Utility toolbar.
5. Type in a name for the formatted disk.
6. Click on the Format menu and choose either MS-DOS (FAT32) or ExFAT.
7. Click Erase.
Your USB drive will now be erased and re-formatted as either FAT32 or ExFAT, depending on the format you chose in step 6.How to manage your drives easily
If you look for a quick and easy way to manage your drives, try using CleanMyDrive 2. With its help, you can drag-and-drop files directly to any drive, clean hidden junk from external drives, and check disk stats. It works for all drives, including USB drives, SSD, SD cards, external hard drives. All the drives will be at hand in the menu bar, so you can get to see types of drives you have and manage them easily. CleanMyDrive is absolutely free to use, so download it on the Mac App Store and enjoy!
It’s very easy to format a USB drive on a Mac using Disk Utility. There are a couple of things you should keep in mind, however. The first is that when you format and disk, you will erase all the data currently on it. So if you need that data, make sure you copy it onto another disk before you start. Secondly, there are several formats to choose from, each with advantages and disadvantage. Use the guide above to help you decide which is right for you.Format Drive For Mac And WindowsFormat Drive For Mac And PcThese might also interest you:
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