This is the #1 reason the installation fails. Windows Defender will quarantine the crack folder or the Dodi.exe launcher.
Windows 7 SP1, Windows 8.1, Windows 10 (64-bit versions only).
: If DLCs aren't appearing, check if there are additional .doi files in the folder that need to be manually moved or if a "Crack" folder contains a specific .ini file that needs editing.