Decompression is heavy on your system's memory. If your RAM is insufficient or under heavy load, the installation may crash.
The native unarc.dll version varies between software. Try: how to fix unarc dll returned an error code 1
The most frequent fix for decompression errors is expanding your system's virtual memory to handle large extraction tasks. Open System Properties > Advanced System Settings . Under Performance , click Settings > Advanced tab > Change . Uncheck "Automatically manage paging file size." Decompression is heavy on your system's memory
If the error says "Archive data corrupted," the file you downloaded might be incomplete. Re-hash or Verify how to fix unarc dll returned an error code 1
Error -1 is uniquely sensitive to RAM errors because LZX decompression uses in-memory dictionaries. A single flipped bit can trigger this error.