[HKEY_LOCAL_MACHINE\OPUS-NT_TMP\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer]; disables recent/frequent items in the explorer (quick access for example), taskbar context menus, etc...
"ShowRecent"=dword:00000000
"ShowFrequent"=dword:00000000
[HKEY_LOCAL_MACHINE\OPUS-NT_TMP\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced]; [windows 7 and older] disables recently opened documents in the start menu