Hi,
For HKEY_LOCAL_MACHINE\SOFTWARE\Policies, group Policy adds, deletes, and changes the values of entries in this subkey when you use the Group Policy snap-in to enable or disable a policy. When the policies affecting a particular user or computer change, such as when the user moves to a new user group, Group Policy deletes the entries for the old group and adds the entries for the new group.
The HKLM\SYSTEM\CurrentControlSet\Control registry tree contains information for controlling system startup and some aspects of device configuration.
Best regards,