The "ISDone.dll / Unarc.dll error code 6" typically indicates a file read operation failure archive data corruption
1.5 times your total RAM in MB (e.g., 12288 MB for 8GB RAM). isdonedll unarcdll error code 6 exclusive
If you're installing from a CD or DVD, ensure that the disc is clean and free of scratches. If you're downloading, try re-downloading the installation files. The "ISDone