Stopping the update

I do not like the layout of the CCcleaner for Windows on version 7 and being unable to find the wipe drive feature. I rebuild old computers and like to scrub the drives before reusing them. I want to stick with version 639 so I uninstalled 7 and reinstalled 639 from a previous download. Every time I need to use this tool, I find it has automatically updated and I have to uninstall 7 and reinstall 639 to get anything done. How do I stop the automatic updates?