Portable Wireshark does not "install" in the traditional sense; it extracts its files to a specific folder on your USB drive or local disk.
: You can also find it on PortableApps.com, which provides a standardized platform for managing various portable tools. How to Install and Run download portable wireshark
: Get the latest WiresharkPortable64.paf.exe . Portable Wireshark does not "install" in the traditional