Sets SvcHostSplitThresholdInKB to 64 GB. On systems with more than 3.5 GB RAM, Windows splits every service into its own svchost.exe process, which inflates the process list and per-process overhead. Raising the split threshold above your installed RAM tells Windows to group services back into shared host processes, trimming idle memory and dozens of processes. Trade-off: a crash in one grouped service can affect its neighbours, and Task Manager attribution is coarser. Reboot required.
MaxTweaks applies this tweak with one click and snapshots your original setting first, so you can revert it cleanly at any time. A System Restore point is offered before batch changes, and every tweak links to its official source.
Get MaxTweaksOfficial documentation: https://learn.microsoft.com/en-us/windows/application-management/svchost-service-refactoring