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Core Windows system tweaks are modifications to Windows 10 and Windows 11 OS-level settings that most users never touch — but that have a significant impact on PC performance. This includes disabling unnecessary background services, optimizing memory management parameters, adjusting Windows scheduler settings, and removing pre-installed bloatware that runs on every startup.
Unlike basic PC optimization tools that only clean files, SageTweaks core system tweaks target the Windows service layer, registry performance keys, and OS scheduling behaviour — the same areas that professional competitive gamers and esports organizations optimize their machines.
All core system tweaks applied by SageTweaks are individually tested across hundreds of hardware configurations. Automatic restore points are created before any changes so you can always revert. Explore our complete PC optimization guide or Windows 11 optimization tips to learn more.