VMFS is a high-performance file system used by VMware ESXi servers to store virtual machines. It's optimized for sequential I/O operations and is designed to handle large files and high-capacity storage devices. However, this specialization also means that VMFS recovery requires specific tools and expertise.
Most sites promising "free keys" or "keygens" bundle their downloads with malicious software. Since you are likely already facing data loss, a ransomware attack could make your files permanently unrecoverable.
It is important to be aware that searching for a for paid software like DiskInternals VMFS Recovery often leads to significant security risks. The Risks of "Free" Serial Keys and Cracks