Video formats RecoverHelper recovers
RecoverHelper carves the formats cameras and phones actually record: MP4, MOV, M4V, MKV, AVI and WebM. Because video files are large, they're more likely to be fragmented across the disk — which is where partial recovery helps, salvaging the readable portion of a clip instead of giving up on the whole file.
Use Deep Scan or Carving Only
Most video lives on camera cards, phone cards and external drives formatted as FAT32 or exFAT, so use Carving Only or Deep Scan to rebuild clips by signature. Pull the card or drive, connect it to your computer, and recover to a different drive — the app opens the source read-only and blocks same-drive output.
A note on the free tier
JPG and PNG photos recover right away; video recovery unlocks by pairing the free RecoverHelper mobile app. Run the full scan to confirm your clips are there, then scan the QR code once — the unlock is free and this PC stays unlocked.