Survive the ruins of Dead Zone.
Fight for what remains.
Choose your connected USB drive as the installation folder.
Once finished, you can run the program directly from the USB on that computer without touching the local disk's file system. Why Avoid Third-Party "Portable" Links?
Plug the USB into the target computer, restart it, and change the BIOS/UEFI boot order to start from the USB.
Unofficial portable versions have been flagged for containing viruses like "Virus.Sality".
Connect an empty USB drive and select "Crashed PC" or "Create Bootable Disk" within the software.