Ive been using the registry cleaner for a few years and now its showing thousands of entries every time i scan, it even shows items that are no longer in the registry (couldnt find it in regedit) and entries to some programs i havent installed since my last reformat. I decided to delete one of the entries from a program i didnt have (after makiing a backup) and my computer started to have trouble loading windows, So i restored the backup and tried again with a entry that did exist with the same results, Spybot and Malwarebytes didnt find any problems and im not sure what to do with it... I would like to be able to use it again since i usually get a noticible performance boost after cleaning the registry.
if it helps im running windows 7 ultimate 64bit, CCleaner v4.09.