Almost certainly malware, ransomware, a downloader trojan, or a fake executable that does nothing except harm your system.
A standard Windows 7 Ultimate 64-bit ISO is approximately . Even the most extreme compression techniques (e.g., Ultra-compression via FreeArc, KGB Archiver, or 7-Zip with LZMA2) can lower it to maybe 600–800 MB— not 10 MB . A 10 MB file is smaller than a single low-resolution photo or a short MP3 song; an entire operating system cannot fit in that space. windows 7 ultimate 64 bit highly compressed 10mb best upd