If you are looking at this specific version (1.10.50) for purposes:
When you "Extract" Part 1, the archiving software (like WinRAR or 7-Zip) automatically looks for "Part 4" to continue pulling the data until the full game directory is rebuilt. A Note on Compatibility Fallout.4.v1.10.50.0.Hotfix.Inclu.ALL.DLC.part4...
The string is a specific file segment typically found in multi-part archive downloads (like .rar or .zip ) for Fallout 4 . If you are looking at this specific version (1
"Part 4" is functionally useless on its own. To extract the game, you must have all preceding and succeeding parts (Part 1, Part 2, Part 3, etc.) in the same folder. etc.) in the same folder.