30–50 MB (compared to 150+ MB for the full install of its era, or 2+ GB for modern Illustrator).
On any machine from the last 15 years, Illustrator 8 launches instantly (under 2 seconds from a USB 2.0 drive). The interface is snappy, with no background telemetry, cloud sync, or font auto-activation slowing things down. adobe illustrator 8 portable