If your device literally has only 500MB of storage available (e.g., a retro PC or a Raspberry Pi), you should run Windows 10. Instead, consider these superior lightweight operating systems:

: Removing core components often breaks Windows Update or prevents certain software from installing.

~2.8 GB ReviOS is another "top" contender. It focuses on reducing latency for gaming and audio production. It removes telemetry and background services but keeps more networking components than Tiny10. For gamers with low-end storage, ReviOS is excellent.