Fido is a command-line tool for automating the retrieval of official Windows installation images and UEFI shell files. It provides a script-driven interface to download these system images directly from remote servers without the use of a web browser.
The project utilizes LZMA compression to embed scripts within executable binaries for smaller distribution sizes. It incorporates security utilities for generating and verifying cryptographic digital signatures, ensuring the integrity and authenticity of downloaded files via public-key verification.
The tool covers automated file deployment and ISO retrieval, mapping command-line arguments for version and architecture to specific remote API patterns. These capabilities allow for the programmatic collection of retail installation images and low-level boot images used for system diagnostics and maintenance.