First volume of a five-part set, packaged as a 1.00 GB self-extracting RAR executable, holding a multi-language Windows 10 Pro build described as pre-activated. Executing it or opening it in WinRAR reassembles the image only if parts two through five are alongside. The resulting media can be written to USB for reinstalling an OS after repair, yet as an unofficial repack it should be scanned for malware and replaced by genuine Microsoft installation media when licensing matters.
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 @laptopschematics. Enginerys does not host this file.