System Cleaner's Registry Defrag analyzes and, if necessary, creates a new, smaller and optimized registry by eliminating all structural problems, removing fragmentation and deleted entries. To access Registry Defrag, use the Optimize & Improve button on the System Cleaner's left panel.
As the first step, Registry Defrag tool will determine how defragmented your registry currently is.
Important! Registry Defrag tool requires exclusive rights to access your PC's registry, so no programs can be running in the background while the registry is being analyzed. You will be asked to save all your work and close all running programs. It usually takes a few minutes to analyze the registry and you will not be able to access your computer during this time.
After the analysis completes, Registry Defrag will offer you the report where your current registry size is stated as well as the estimated registry size after optimization and size difference. You can click the Optimize button to launch optimization or Close to exit the tool.
Please note that to ensure that the program uses the most recent registry data, Registry Defrag only allows you one minute to complete the defragmentation after the analysis is made. In case you need more time to make your decision, you will have to re-run the analysis again.