standby memory is nothing else as cache, in DOS ages called smartdrv, and its nothing wrong if these is full… ( simple test: open/view a 20gig video file and you will see it goes directly into the standby memory ). And because this exist, a reopen of a file which was already openen is much faster.
These standby memory have a low prio and have nothing todo with a memory leak.
That you can clean the Standby memory we mentioned often , example CTD (Resource Exhaustion Monitor) - #12 by MichaMMA.
But that windows use pagefile , because of Standby memory isnt correct.