I recently downloaded and installed CCleaner on a laptop running Vista Home Basic. I had recently increased my RAM,but the machine was still running at a snail's pace,and I mean SLOW!
Two or three minutes to launch my Firefox browser,for example.Anyway,I ran the cleaner and next the registry cleaner.I got a list of registry issues running down the whole page.When I fixed the issues,suddenly the machine is running blazing fast! If anyone doubts the value of this program,don't!