I noted the amt of free space on my C:\ drive drop almost 5GB ovennight. I had not installed anything new so it seemed a mystery. Windows did install several Critical Updates....but nothing equaling 5GB. Knowing a restore Point was created before the Update I checked under Advanced Settings\System Protecttion....and my setting for MAX Usage is at the 4% (23.24GB) which is where I set it. However, Current usage size is 27.34GB. The difference certainly explains away most of the 5GB of free space I lost overnight.
I did run the Shadow Space Command from a CMD line to be sure it showed the same information, and, it did.
I thought as the space reached its Max allotted size that it would drop older restore points and not exceed the allotted Space?
Since I have the Max Usage set at 23.24GB...then how is it that the Current Usage is 27.34GB
Use ccleaner once and clean up all the garbage then check the space.
Did this solve your problem?
Sorry this didn't help.