File System Support
UndoDisk supports multiple file systems with varying levels of feature availability.
Supported File Systems
NTFS
The primary Windows file system. UndoDisk provides full support including MFT parsing, journal replay, alternate data streams (ADS), and both Quick Scan and Deep Scan recovery.
FAT32
Common on USB drives and older Windows systems. UndoDisk supports cluster chain reconstruction and signature-based carving for FAT32 volumes.
exFAT
Used on SD cards and cross-platform USB drives. Full support for Quick Scan and Deep Scan recovery.
FAT12/16
Legacy file systems found on older media. Supported through cluster chain reconstruction.
ext4
The standard Linux file system. UndoDisk supports journal recovery and inode reconstruction for ext4 partitions.
Feature Matrix
| Feature | NTFS | FAT32 | exFAT | FAT12/16 | ext4 |
|---|---|---|---|---|---|
| Quick Scan | ✅ | ✅ | ✅ | ✅ | ✅ |
| Deep Scan | ✅ | ✅ | ✅ | ✅ | ✅ |
| Recovery Vault | ✅ | ✅ | ✅ | — | — |
| File Preview | ✅ | ✅ | ✅ | ✅ | ✅ |
| Journal Replay | ✅ | — | — | — | ✅ |
| Disk Health | ✅ | ✅ | ✅ | ✅ | ✅ |
Notes
- Quick Scan reads file system metadata and is fastest for recently deleted files.
- Deep Scan performs sector-by-sector carving and works on formatted or corrupted drives.
- Recovery Vault requires the monitored folder to be on a supported file system.
- Disk Health monitoring uses S.M.A.R.T. data and is independent of file system type.