A: This is almost always an antivirus issue. The installer saves the crack files (which alter game .exe files) for last. Your antivirus blocks the write at the final second. Disable AV and reinstall.
files are libraries used by installers to extract compressed data. When you see an error involving these files, it rarely means the files themselves are missing from your system; rather, it means the installer failed to decompress dodi repacks unarc.dll
: Because repacks use custom scripts to move files and modify registries, antivirus software often flags unarc.dll or the associated isdone.dll as "heuristically suspicious," blocking the file's ability to write to the disk. DODI Repacks — unarc
Shift while clicking “Restart” → Troubleshoot → Advanced Options → Startup Settings → Restart → Press 4 for Safe Mode.unarc.dll can work untouched.