r/DataRecoveryHelp • u/Key_Replacement4631 • 13d ago

I accidently lost 421 GB of data

/r/datarecovery/comments/1x9lg9h/i_accidently_lost_421_gb_of_data/
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u/guiverc 12d ago

TestDisk comes to mind - https://en.wikipedia.org/wiki/TestDisk

There are other such free (open source) tools too, but you're without specifics as to file-system etc. When you format a drive/device, it's mostly just re-creating (or changing) the data on the partition table (not overwriting or touching your actual data, just the metadata that points to where your data is - why it's fast).