I downloaded and installed one of the monthly Windows 10 Cumulative Updates. After the installation, I tried to use CCleaner to remove the 2.87 GB download but could not do it. I was forced to use Micrtosoft's Windows 10 Disk Clean to perform the cleanup. Is this because I have the free version of CCleaner on my computer? Does the PRO version perform this function? The reason I ask is that How-To-Geek had an article in their newsletter today that Microsoft is planning on removing Disk Cleanup from Windows 10 and I wondered what I could use should that occur, to remove the residual Windows 10 Update download files.