The official is currently the closest functional equivalent to a portable scanner.
You download a single executable file. When launched, it can perform a "Clean" or "Repair" function that includes scanning for and removing threats without requiring a full suite installation first. malwarebyte portable
Malwarebytes Portable is a portable version of the popular malware removal tool, Malwarebytes. It is a self-contained executable file that can be run directly from a USB drive or other portable device, without requiring installation on the host computer. The official is currently the closest functional equivalent
For IT professionals and repair shops, Malwarebytes offers a dedicated "Techbench" program. This provides a truly portable, command-line, and GUI-based toolset designed to be loaded onto a "Technician USB." It includes more granular controls and is licensed specifically for commercial repair environments. Malwarebytes Portable is a portable version of the
: Right-click the tool and select Run as Administrator.