To determine when the /ResetBase option was last run, check the LastResetBase_UTC registry entry under the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing registry path.
To determine when the /ResetBase option was last run, check the LastResetBase_UTC registry entry under the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Component Based Servicing registry path.