For a look at how these systems manage resources and maintain high performance on low-end hardware:
The goal of MiniOS is simple: strip away the "bloatware"—the background processes, telemetry, and unnecessary visual effects—to leave behind a core system that uses minimal resources. Why the 32-Bit Version Matters minios 32 bits
To stay legal, you should always use your own genuine Windows license key to activate the OS once installed. How to Install MiniOS 32 Bits For a look at how these systems manage