However, I can offer useful, legal information:
SpyHunter 5 is not free. You need a paid subscription. EnigmaSoft does not officially offer a "Free Portable" edition for commercial scanning. You must download the standard installer on a clean PC, then use a third-party portable application creator (or specific command-line switches) to extract the binaries to a USB drive. Note: Always verify licensing terms; running a paid tool portably may violate EULAs if not used for a single user. spyhunter 5 portable