This is the most common outcome. You download the 10MB RAR or ZIP file. You try to extract it, and suddenly the file expands to 3GB. "Aha!" you think, "It really was compressed!"
Some pranksters rename lightweight Linux systems (like , which is about 16MB) and call them "Windows 7 Ultimate." When booted, you see a Linux desktop, not Windows. Windows 7 Ultimate 64 Bit Highly Compressed 10mb
As he browsed through various websites, he stumbled upon a mysterious link that claimed to offer "Windows 7 Ultimate 64 Bit Highly Compressed 10mb". The file size seemed absurdly small, but John's curiosity got the better of him. He clicked on the link and downloaded the file. This is the most common outcome