Software to backup, clean, and compress registry. Make your computer run faster and with less errors or system halts. The registry is vital to your computer's ability to run smoothly. Any faulty keys, registry viruses, or fragments can cause your computer to either slow down or not function properly. If your registry becomes infected with a virus or you have lost keys, it may require you to reinstall Windows. Version 3.1 has a complete re-write with many more registry fault detections.