TestDisk can run under
- DOS (either real or in a Windows 9x DOS-box),
- Windows 32-bit (NT4, 2000, XP, 2003),
- Linux OSs,
- FreeBSD,
- NetBSD,
- OpenBSD,
- SunOS and
- MacOS
On TestDisk web site, precompiled binary executables are available for DOS, Win32 and Linux.