: By removing features like Cortana, OneDrive, and even Windows Defender in some cases, the install size is drastically reduced. Key Features of the 500MB Edition

Avoid for any machine connected to the internet or handling personal data. Instead, use official Windows 10 LTSC or a lightweight Linux distribution. If you absolutely need a tiny Windows for legacy hardware, Tiny10 (by NTDev) is less dangerous than anonymous “exclusive” builds, but still not secure.