I accidentally deleted important files from my USB drive and realized it before adding anything new to it. I’m looking for a free way to recover deleted USB drive files, including documents and photos, because I really need them back and can’t afford paid software right now. What actually works?
If I were dealing with your USB stick, I’d start with recovery software, unless the drive is doing hardware-failure stuff. I mean cases where it vanishes from the system, reports 0 bytes, keeps reconnecting, or gets warm for no good reason. If this was a plain file deletion mistake, software gives you the best chance without turning it into an expensive lab job.
First thing, and yeah this matters a lot, stop writing anything to the USB right now. Don’t move files onto it. Don’t format it. Don’t try random “fixes.” On USB drives, deleted files usually skip the normal Recycle Bin flow. The file system marks the space as free, and the old data sits there until something overwrites it. I’ve seen people lose recoverable files by copying one folder back “to test.” Bad move.
Before you scan, do a quick sanity check. Sometimes the files weren’t deleted at all. They got hidden, moved, or copied somewhere else earlier. I’d look in these spots:
- Show hidden files on the USB and check the folders again.
- Look for folders named $RECYCLE.BIN, RECYCLER, RECYCLED, or .Trashes if the drive touched a Mac.
- Check your PC for stray copies in Downloads, Desktop, Documents, or synced folders.
- Look through backups and sync services like File History, OneDrive, Google Drive, or Dropbox.
If none of that turns up anything, then yeah, I’d move to recovery software.
The apps differ in layout, scan depth, previews, and file system support, but the workflow stays close across most of them:
- Install the recovery app on your computer, not on the USB.
- Connect the USB and pick it inside the program.
- Run a lost file or deleted file scan.
- Let it finish. Don’t cut it short if the files matter.
- Sort or filter by type, date, name, or size if the app supports it.
- Preview files where possible.
- Select what you want back.
- Save the recovered files to your computer or another drive, never to the same USB stick.
That last part trips people up. If you restore files back onto the same USB, you risk overwriting other deleted data you haven’t recovered yet. I did this once years ago. Lost more than I got back. Learned fast.
As for software, these are the ones I’d check first:
- Disk Drill: This is the one I’d try first for your situation. It handles common USB file systems like FAT32, exFAT, and NTFS, and the preview tool helps a lot. If a file opens in preview, your odds are usually better. I also like it when the drive has minor file system damage, not only simple deletion.
- PhotoRec: Free, ugly, effective. Good when the file system is damaged or scrambled. The catch is the output. You often lose original names and folder layout, so recovery turns into a sorting mess. Still worth keeping around for rough cases.
- Data Rescue: Solid enough from what I’ve seen. It works, but I found the interface less clear than others. If your first scan misses things, this makes sense as a second pass.
- Recuva: Old, Windows-only, still useful for simple recovery jobs. If you deleted common stuff like JPGs, PDFs, DOC files, or other standard formats, it’s still worth a shot.
One thing I would skip at the start is CHKDSK or any repair command. Those tools are for file system repair, not undeleting files. Sometimes they help. Sometimes they shuffle things around and make recovery worse. I stick with recover first, repair later.
So, if the USB still mounts normally, I’d scan it with Disk Drill first, restore the important files to a different drive, and deal with the USB itself after that. If the drive seems unstable in a physical way, or the files matter enough where loss isn’t acceptable, I wouldn’t keep poking at it. I’d stop and go to a recovery lab instead. Bit pricey, yeah, but less risky.
Yes. If you stopped using the USB right after deletion, your odds are decent.
I agree with @mikeappsreviewer on one part, do not write anything back to the stick. I differ a bit on tool order though. For a free-first approach, I’d start with Recuva or PhotoRec before spending time elsewhere. Recuva works well on simple deletions from FAT32 or exFAT USB drives. PhotoRec is uglier, but it pulls a lot of photos and docs when directory info is gone.
My quick order:
- Plug in the USB.
- Check its size in Disk Management. If it shows the right capacity, that’s a good sign.
- Make an image of the USB first if you have space. USB Image Tool or similar helps. Safer than scanning the original over and over.
- Run Recuva deep scan.
- If names/folders are missing, run PhotoRec next.
- Save recovered files to your PC, not the USB. People mess this up alll the time.
If you want a cleaner interface and better previews, Disk Drill is worth trying too, especially for documents and photos on USB flash drives. It tends to be easier to sort through results.
One more thing. If the files were deleted on a Mac, check for hidden trash folders on the drive. If deleted on Windows, don’t expect Recycle Bin to save you.
Also, this video guide is decent if you want a visual walkthrough for flash drive recovery:
step by step flash drive file recovery video guide
Short version, yes, free recovery is possible. Start with Recuva or PhotoRec. Use Disk Drill if you want better filtering and preview tools.
Yes, free recovery is possible, but I’d add one thing neither @mikeappsreviewer nor @andarilhonoturno really stressed enough: if the files matter a lot, make a byte-for-byte image of the USB first and work from that image, not the stick itself. Flash drives can get flaky fast, and repeated scans are not always harmless in practce.
If you want truly free options, TestDisk/PhotoRec is the obvious one, but it’s kinda messy. Recuva is easier, though I’ve had mixed results on exFAT sticks. That’s where I slightly disagree with the “start with Recuva” crowd. For plain deleted docs/photos, sometimes Disk Drill is faster to sort through because previews and filtering save a ton of time, even if the free recovery limits depend on OS/version. So I’d use free tools first, but I would not pretend all “free” methods are equally painless.
One more trick: if the USB was ever used with Windows, check Previous Versions on any folder you copied from, and check cloud sync trash if those files were mirrored before deletion. People forget that and go straight into recovery mode.
Also worth reading if you want more opinions on best USB flash drive recovery software recommendations.
Short version:
- stop using the USB
- image it if possible
- try PhotoRec/TestDisk or Recuva for free
- use Disk Drill if you want easier file preview/sorting
- recover to another drive, not back to the USB
If the drive shows 0 bytes or disconnects randomly, stop DIY stuff becuase that’s not a normal deletion problem anymore.
Yes, free recovery is possible, but I’d push one extra check before running tools: inspect the USB’s SMART/health if the controller exposes it. If the stick is throwing read errors, clone first or stop. Repeated scans on a dying flash drive can make a recoverable situation worse.
I slightly disagree with @andarilhonoturno and @viajantedoceu on one thing: I would not always jump straight into the deepest scan. A quick metadata-based scan first can preserve filenames and folder structure better, then fall back to signature carving only if needed.
About Disk Drill, it’s a solid middle ground.
Pros
- easier previews and filtering
- good for documents and photos
- cleaner interface than PhotoRec
- can find both deleted and lost partitions/files
Cons
- free recovery limits can apply depending on platform/version
- not as “purely free” as TestDisk/PhotoRec
- deep scans can return lots of junk to sort through
So my take:
- if the USB reads normally, try a quick scan first
- if that fails, move to deep scan/carving
- recover to another drive
- if files are critical, image the USB before anything
That’s where Disk Drill is nice, even if Recuva or PhotoRec stay the best zero-cost starting points mentioned by @mikeappsreviewer too. If the drive disconnects, slows to a crawl, or shows wrong size, stop DIY.

