cant re-install macOS after fail to install win10, error code:69716

Hi, Guys:


Today I tried to install win10 in my 2019 imac (27), it failed and re-start, and cant log in macOS system either. I tried to re-install MacOS, didnt work, error code is 69716. I checked its hard disk, seems the space assigned to win10 cant be formnow. How to install Mac OS now? Thx a lot!


Ning


Posted on Aug 21, 2022 4:17 PM

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Posted on Aug 21, 2022 10:35 PM

You can't make a partition- you'll just have to reformat the entire disk. Click 'Erase' in recoveryOS's Disk Utility, then reformat it as APFS, GUID Partition Map (if prompted).

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cant re-install macOS after fail to install win10, error code:69716

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