Compression technology (like ZIP or RAR) is impressive, but it has limits. You can usually compress a 100GB file down to about 50GB or 60GB with heavy compression. Reducing it to (24 MB) would require a compression ratio of over 4,000:1.
If your hardware can't handle the 100 GB install, consider services like Xbox Cloud Gaming . This allows you to stream the game to your device without needing a massive ISO file. gta 5 iso file 24 mb
Downloading and using GTA 5 ISO files from untrusted sources poses several risks: Compression technology (like ZIP or RAR) is impressive,