How to Recover Files After Formatting a Drive

Formatting the wrong drive is a gut-punch — but in most cases your files are still there. A quick format (the default on Windows) doesn’t wipe the disk; it just lays down a fresh, empty filesystem on top and marks the whole thing as available. The old data underneath is untouched until it’s overwritten. Here’s how to get it back.

First, stop using the drive. The moment you realise a file is gone, stop saving anything to that drive — don’t install recovery software onto it either. Deleted data sits in place until something new is written over it, so every write is a roll of the dice. Recover to a different drive (a USB stick is fine).

Quick format vs full format

It matters which one happened:

Quick format — only rewrites the filesystem structures. Your files are recoverable. This is what almost everyone does.
Full format (Windows since Vista) — also zero-writes the drive and checks for bad sectors. This overwrites data, and recovery is usually not possible.

Why you need a deep scan

After a format, the old filesystem records are gone, so an ordinary undelete scan finds little. A deep scan (also called signature carving) ignores the filesystem entirely and reads the raw drive, recognising files by their internal signatures — the tell-tale bytes at the start of a JPEG, PDF, ZIP-based Office document, MP4 video and so on. It rebuilds them directly from the disk.

Honest note about names. Because the old directory is gone, carved files no longer carry their original filenames. Good tools are upfront about this: DéjàFile gives carved files a clear, truthful name like “Recovered photo 12.jpg”, and where a file carries its own metadata it uses the real detail — a photo’s capture date becomes “Photo 2023-07-14 15-22.jpg”. They’re grouped as “Deep scan — name not recoverable” so nothing is misrepresented.

Step by step

Install DéjàFile on a different drive from the one you formatted.
Select the formatted drive. You can target a specific volume or scan the whole physical disk.
Choose Deep scan. This reads the whole surface, so it takes longer than a quick scan — let it run.
Filter results by type (Photos, Documents, Video…) to find what you care about faster.
Check the recoverability rating, preview, and recover to another drive.

Which drives can be recovered?

DéjàFile reads NTFS, FAT12/16/32 and exFAT — which covers essentially every internal drive, external drive, USB stick and memory card a Windows PC will see. So a formatted camera SD card or USB stick is very much in scope.

FAQ

I did a quick format — are my files really still there?

Almost certainly, as long as you haven’t written much to the drive since. Stop using it and run a deep scan now.

Will I get my folder structure and filenames back?

Not from a deep scan — that information lived in the filesystem the format replaced. You’ll get the file contents back with sensible, honest names. If only some files were deleted (not a format), a quick scan can still restore original names.

Does recovery work after reinstalling Windows?

If Windows was reinstalled onto the same drive, a lot of it will have been overwritten and results vary. Recover whatever you can quickly, and don’t keep using that drive.

Quick format vs full format

Why you need a deep scan

Step by step

Which drives can be recovered?

FAQ

I did a quick format — are my files really still there?

Will I get my folder structure and filenames back?

Does recovery work after reinstalling Windows?

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