isdone.dll error during repack installations is almost always a decompression failure caused by insufficient system resources (RAM/Virtual Memory), antivirus interference file path limitations , rather than a missing file 1. Disable Antivirus and Windows Defender
While the ElAmigos releases themselves are usually top-tier—clean, virus-free, and incredibly compressed—the ecosystem surrounding them creates a harsh user experience. isdone.dll error elamigos
Method 5: Run a Virus Scan
If the error "Unarc.dll returned an error code: -1" persists, your RAM might be unstable. Windows Memory Diagnostic tool to check for hardware errors. isdone