Let me start off by saying, I found out about CCleaner only a couple of days ago so please excuse this if it's a repeat suggestion.
Using the tools\uninstall menu I was appending Z's to the begining of entries that for a reason or another I've been using for some time and just wanted them out of the way for new apps that I often install and test.
If you decide to do this for the countless windows update entries it can get tedious. My suggestion would be to have a small feature that would allow you to select multiple entries and drop them to the bottom of the list by appending the letter Z to the begining of their entry without having to alter each entry manually.
