Best for those who want a consistent, bug-free experience.
You download a small .exe file (the updater), which then handles the massive multi-gigabyte download for you. 2. The "Local Source" Trick for Offline Installation
Run the official web installer. The updater will recognize the text file, "sip" the data from your external drive instead of the internet, and only download the few megabytes of registry data it needs to finalize the install. 3. Enabling Unlimited Offline Mode
The most popular version, offering the latest features and aircraft, though it may have occasional bugs.
Copy your existing DCS World folder from the first PC to an external hard drive (at least 200 GB is recommended).