"After compression, my drivers don't install." Fix: You compressed the ISO itself instead of the Drivers folder. The AutoInstaller needs a folder named Drivers next to it.

Safer alternatives

A well-compressed version might reduce the full driver pack to using formats like 7z (LZMA2) or ultra compression, without losing critical driver signatures.

The official offline version is not highly compressed . It is large because it contains thousands of real, uncompressed driver packages. Any third-party claim of “highly compressed” (e.g., shrinking 20GB to 500MB) is mathematically impossible without deleting drivers or introducing malicious code.