It's important to be honest: without being a fake, a virus, a stripped-down beta, or an installer that requires hours of unpacking to a full 15GB+ size.
Buy GTA IV from a legitimate storefront or use cloud gaming. For low-spec PCs, tweak settings and use legal performance mods; avoid any “200MB” compressed packs from unofficial sources.
The "200MB GTA IV" is a scam. The better review is a warning. Don't waste your time – play something real instead.
Most of these downloads are "infinite extractors" that show a progress bar but never actually finish, or they ask for "verification codes" via paid surveys. Missing Assets: If a version actually launches, it will have