Thanks for the info. I have checked different reviews of this type of software and it depends on who is reviewing the top 10 software programs. Each person recommends a different one so it is confusing. I hate to say this but they all seem to say ccleaner is not that good, but I'll keep on looking and if I do purchase one and it works I'll let you know. I do run disk clean up and defrag once a week but lately my computer is very sluggish and I am not that tech savvy to manually check the registry. Each one I download for a free checkup says I have close to 1000 problems. I'll keep looking. Thanks again