Install the game to a short, simple path like C:\Games\[GameName] . Avoid special characters or spaces in the folder name, as these can trigger extraction errors.
Re-download the problematic part(s)
Highly compressed repacks are extremely taxing on your processor. On newer high-end CPUs, the decompression process can cause rapid overheating (sometimes up to 95°C), leading Windows to throttle or crash the installer with Error 12. Limit Processor State Power Plan Advanced Power Settings Processor Power Management and set the Maximum processor state to 99% unarc.dll error code 12 dodi repack