If you find a file named Windows11_10MB.iso, it is 100% fake. It may be:
I analyzed a sample (hash omitted for safety) obtained from a torrent claiming “Windows 11 Pro 10MB Super Compressed.” Inside the ISO: download windows 11 highly compressed in 10mb iso file
Behavior when executed in a sandbox:
No Windows files present – zero boot files, no install.wim, no setup.exe. Change all passwords (from a clean device)
Instead of downloading a static 5GB ISO file containing every driver and language pack, the DCA Engine creates a "Bootstrap ISO." This small file (aiming for the user's low-size constraint) contains only the Windows PE (Pre-installation Environment) kernel and a specialized compression algorithm. If you find a file named Windows11_10MB
No. Even the smallest custom versions require at least 4GB USB drive (and 8GB recommended). The 10MB claim is impossible.
When you download such a file, you are not getting Windows. Common contents include: