Here's how to format USB on Mac
If you need to erase your disk before installing macOS, select Disk Utility from the Utilities window, then click Continue. You probably don't need to erase, unless you're selling or giving away your Mac or have an issue that requires you to erase. Learn more about when and how to erase. If your Mac restarts to a setup assistant, but you're selling or giving it away, press Command-Q to quit the assistant without completing setup. Then click Shut Down.
When the new owner starts up the Mac, they can use their own information to complete setup. Decide whether to erase format your disk If you need to erase your disk before installing macOS, select Disk Utility from the Utilities window, then click Continue. Click Continue, then follow the onscreen instructions to choose your disk and begin installation.
If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
Format external drives to Mac OS Extended before using with Aperture
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time. If you never installed macOS Sierra This combination makes sure that the installation isn't associated with your Apple ID, which is important if you're selling or giving away your Mac.
But two of my USB are ruined, my computer cannot read them anymore.
Format a Mac's Drive With Disk Utility (OS X or Later)
I kinda wanna cry. If you format a hard drive it erases the data on it. That is what formatting does, it erases a drive.
- Format an External Hard Drive or USB Flash Drive for Mac OS X.
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What else do you think erasing a drive is supposed to do except erase the data? I purchased a 4TB WD external drive and having a heck of a time reformatting this drive. I have tried all the above advice without getting to have this new hard drive formatted.
Which format to choose?
Any other suggestions? I just keep getting the error Disk erase failed. There must be something new with High Sierra Is there an option besides just declaring the data irretrievable, and more importantly, how does a USB uninitialize itself?
- Format a Mac's Drive Using Disk Utility (OS X El Capitan or Later).
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Will I be able to copy and share media across both Mac and Windows? I am Computer-Eleteret lol. Now My Mac is about There.
I just have no Clue how to do it. Name required.
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