: The installer will only allow this option if the corresponding file is detected in the folder. Verify Files
: Most repacks include a "Verify BIN files before installation" tool. Run this to ensure part 3 isn't corrupted. setup-fitgirl-selective-german.bin.part3.rar
WinRAR will automatically detect part2 , part3 , and part4 and stitch them together into the original .bin file. If you open part3 directly, it will fail to see the first volume. : The installer will only allow this option