Erased container disk and reinstalled OS

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DAVET2021 Author

Level 1

8 points

Erased container disk and reinstalled OS

Hi,

I recently purchased a new MacBook and finally got around to clearing my old MacBook Air 2014 - Big Sur.

(I had already signed out of iCloud and done an iCloud transfer to new laptop via cloud and not new Mac). This is why there was data still on old laptop.

I hopefully cleared all my data via disk utility. I erased disk called container disk 3, with format Mac OS extended Journal. After this step, I reinstalled Mac OS from recovery. It was in an out of box state and my log in details were cleared.

My question is this, is all my personal details etc photos, files etc gone from this laptop and essentially unrecoverable?

Thanks for your help.

MacBook Air

Posted on Dec 23, 2022 1:42 PM

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Answer 1

Top-ranking reply

HWTech

Level 9

60,758 points

Dec 26, 2022 12:55 PM in response to DAVET2021

Yes, the data on the old SSD is gone due to how SSDs work. As soon as the SSD was erased, all of the NAND memory cells on the SSD were cleared with a TRIM command which blanked all of the NAND memory cells of the SSD.

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Answer 2

K_Wall44

Community Specialist

Dec 26, 2022 12:36 PM in response to DAVET2021

Hello DAVET2021,

Congrats on your new Mac! If you have the info on the new Mac, then it is recoverable from there. Any info that was not transferred, but was erased from the old Mac, can only be recoverable if it is saved in another location such as, a backup, another device, etc.

Hope this helps!

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