Hi gphila,
Welcome to the forum. Hope you get your unit going to your satisfaction.
We need to start somewhere, because I hate to be the bearer of bad news, but there is no "quick program" that will fix all problems with the registry or another other computer problem. You indicated "problems" and not a problem, so you must have some good ones.
So, for starters, why not tell what your computer is by giving us a synopsis of your unit. Motherboard, CPU, video card, power supply, drives, etc. etc. etc.
Then, tell us what it does that is causing problems that you feel need to be fixed. Be sure to list what Operating System you are using. If there are any specific thing we need to know, be sure to talk about them.
We look forward to getting more information so we can try to solve your problem(s).