Over time the pc progressively gets slower.. yes I know. capacity restrictions , malware etc. wait,,,isn't that what these programs are supposed to remove or correct ?? anyway,w hat I have found is that by unistalling the System Mechanic and then reinstalling it again that things seem to get better.. Maybe the supplier is deliberately slowing the system down so they can sell you a much better version and ChChec "better" verison where you get to spend more mongey. User's recommendation: Check the ratings, then hang on to your money in most cases.