Windows Defender flags a critical extraction script as a false positive and quarantines it mid-install.

ElAmigos hosts "repacks"—versions of games compressed to reduce file size. To achieve small sizes, these installers use intense compression algorithms (like FreeArc). The isdone.dll file is a library used by these installers to decompress files. When the installer attempts to unpack massive game files (often 50GB+ uncompressed), it demands massive amounts of system resources.

In the new window, switch to the tab and click Change under Virtual Memory .