Guide
How to Recover Files from a USB Flash Drive (Even If It Won’t Open)
USB flash drives lose files in two main ways: you delete something (they don’t use the Recycle Bin, so it’s gone from view immediately), or the drive becomes corrupted and Windows suddenly asks to format it. Both are usually recoverable — here’s how.
If you deleted files from the stick
Files deleted from a USB drive bypass the Recycle Bin, but the data isn’t wiped — the directory entry is just marked free. Run a quick scan:
- Install DéjàFile on your PC (not on the USB stick).
- Plug in the drive and select it in DéjàFile.
- Quick-scan, then recover the files you want to your computer.
If the drive won’t open or asks to be formatted
A message like “You need to format the disk before you can use it” usually means the filesystem is damaged — not that your files are gone. Don’t format it. Instead:
- Leave the drive unformatted and select it in DéjàFile.
- Run a deep scan, which reads the raw drive and rebuilds files by their signatures — right past the broken filesystem.
- Recover to a healthy drive, then you can safely reformat the USB stick for reuse.
FAQ
The USB drive says it needs formatting — will I lose everything if I format it?
Formatting lays a fresh filesystem over the drive, making recovery harder. Recover your files first with a deep scan, then format afterwards if you want to keep using the stick.
My files turned into shortcuts or vanished — is that a virus?
A common flash-drive malware hides your files and leaves shortcuts. Your data is usually still there. Scan the drive to recover the originals, then run an antivirus check.
Can I recover from a physically broken USB stick?
If Windows can’t see the drive at all, software can’t read it — that’s a hardware issue. If it mounts but misbehaves, a scan is worth trying right away.