on 21h2 if only you attempt changing it, after restart when it takes effect it immediately freezes explorer, start menu, task bar, creates error report while the whole system is basically frozen unusable. reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control" /v "SvcHostSplitThresholdInKB" /t REG_DWORD /d "67108864" /f even though microsoft 'server', old versions of windows 10, win7 and win8 didn't even had svchost splitting. QUESTION: have any of you had success grouping svchost on 21h2? (physical RAM in KB < SplitThreshold)