Hello,
This post is because I sold my Mac mini a year ago and I'm getting paranoid that I didn't format it, but restarted macOS.
But I'm sure I deleted the data before, because when the Mac installation was finished it didn't ask me for a password. (I think, I don't have a good memory)
Thanks God had I saved these two screenshots in case someone can tell me if it was formatted or just re-installed.
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And before
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This post is because I sold my Mac mini a year ago and I'm getting paranoid that I didn't format it, but restarted macOS.
But I'm sure I deleted the data before, because when the Mac installation was finished it didn't ask me for a password. (I think, I don't have a good memory)
Thanks God had I saved these two screenshots in case someone can tell me if it was formatted or just re-installed.

And before
