Try not to succumb to registry marketing pitches

I tried a registry cleaner and it came up with 10,021 errors. As it was a tryout, it offered to fix six errors. In alarm, I subscribed in order to fix the rest. Wilson John Haire

This is a common marketing technique, but I would advise against paying up. There's no guarantee that the "errors" are meaningful, if they even exist. There is no guarantee that fixing them will bring any improvements, and some chance that the cleaner will do more harm than good. I only use CCleaner (http://ccleaner.com), which is free. TweakNow RegCleaner (http://tweaknow.com/RegCleaner.html) is more specialised, and free for personal use. Try not to pay for one.