Hi,
I'm trying CCleaner pro compared to free to see if it made a difference, no it does not.
My issue is that I have a laptop with a very small SSD, and Windows 8.1 32 bits is now using 60% of it! As you know, Windows grows over time. Analyzing further this is WinSxS that is growing as it gets mini update and extra files.
So bottom line ... is there any mean (including another software!) that can trim the fat?