An Error Code 1 - How To Fix Unarc Dll Returned

Try extracting the setup contents manually using 7-Zip :

| Error Code | Meaning | Primary Fix | |------------|---------|--------------| | -1 | Data block corruption / decompression failure | Test RAM, disable AV | | -2 | Cannot write output file | Check disk space/permissions | | -5 | Archive header corruption | Redownload file | | -14 | CRC mismatch after decompression | Redownload or repair archive | how to fix unarc dll returned an error code 1