As I understand, optimization is either defrag (HD) or trim (SSD), depending on the disk type. And if I understand Trim, it does not operate independently of the O/S; garbage collection is done sporadically without assist of the O/S, but Trim must be operated through the O/S. And, again, if I understand, Trim and garbage collection are not the same thing. If Trim was not able to be scheduled or if Trim did not need to be scheduled, then Microsoft would not have included it in their Optimization Center for SSDs. But Microsoft did include it, and appears to not be running it for SSDs even when included in a schedule.
I was asking why this was so, and if there was a solution to it.
As Microsoft appears to have no solution, I will look for a third-party Trim that can be scheduled outside of the Optimization Center.
Thx. ITG