working great

Since my computer is a mid-2010 MacPro, I had to heed the warnings not to install the “El Capitan” system. The Disk Doctor upgrade would not work, so I uninstalled it and fished the old version out of my backup and reinstalled that. Then the next thing I know, the upgrade reinstalled itself again. I could not delete it from the app store. However fortunately, now it does work. I don’t want to give it 5 stars because it lacked giving me a choice whether to upgrade it again or not.

Etherichands about Disk Doctor: System Cleaner