HP EliteBook 735 G6 AMD archive described as an HD image, most likely a disk or recovery image, though the name does not confirm its exact form. No board number is given. Extract the RAR and inspect the contents before use, checking whether it is a full drive image or a set of recovery files. A disk image restores the operating system and drivers rather than repairing hardware, so confirm the target model matches and back up any existing data on the drive first.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @ShareMan_Electronic_Files. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.