Once you have all parts downloaded and sitting in one folder:
For the smoothest experience and to avoid the headaches of broken archive parts, you can often find the game on sale through official retailers like the Epic Games Store or Steam. Just_Cause_4_Complete_Edition-Razor1911.part06.rar
: If it's an ISO, right-click it and select "Mount" (on Windows 10/11) to treat it like a virtual disc. Install : Run the setup.exe inside. Once you have all parts downloaded and sitting