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Apple Computing Products:
macOS - Operating System
Disk Utility and removable flash drive (PMP)
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<blockquote data-quote="chscag" data-source="post: 1100797" data-attributes="member: 46727"><p>If it still only shows up as 200 MB, then using diskpart from a command prompt was not successful. It should show up as one partition unformatted but as the full size of the drive. Did you try again? Make sure you're using the command line properly as below:</p><p></p><p>type DISKPART to enter the diskpart utility</p><p></p><p>at the prompt, enter list disk as below</p><p></p><p>DISKPART> list disk</p><p></p><p>take a look at the disk you want to reformat, and select it with the appropriate number, for example:</p><p></p><p>DISKPART> select disk 1</p><p></p><p>once selected, you can delete the GPT / EPI by the clean command:</p><p></p><p>DISKPART> clean</p><p></p><p>If that disk is showing up in diskpart, you should be able to clean it. Without removing the 200 MB EFI partition, the disk is useless.</p><p></p><p>Regards.</p></blockquote><p></p>
[QUOTE="chscag, post: 1100797, member: 46727"] If it still only shows up as 200 MB, then using diskpart from a command prompt was not successful. It should show up as one partition unformatted but as the full size of the drive. Did you try again? Make sure you're using the command line properly as below: type DISKPART to enter the diskpart utility at the prompt, enter list disk as below DISKPART> list disk take a look at the disk you want to reformat, and select it with the appropriate number, for example: DISKPART> select disk 1 once selected, you can delete the GPT / EPI by the clean command: DISKPART> clean If that disk is showing up in diskpart, you should be able to clean it. Without removing the 200 MB EFI partition, the disk is useless. Regards. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Disk Utility and removable flash drive (PMP)
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