Ok Registry Cleaner ™ is an award-winning Windows Registry Cleaner that helps you thoroughly scan, repair and compact the invalid or missing Registry entries on your PC, which could cause system slowdown, freezing or crashing. The rich built-in utilities can effectively secure, optimize your Windows System and improve your computer performance and speed. Features and Benefits: 1. Scan and automatically repair the problems caused by invalid or missing Registry entries ( a total of 17 dedicated scanning options covering all aspects of Windows-based operating systems). 2. Compact the Registry fragments for better and smoother performance. 3. Backup the Registry files prior to any scanning and repairing to guarantee a repairing failure can be restored (including mandate backup and manual backup). 4. Rich Build-in Utilities will Restore & Optimize the default Windows settings to speed up PC performance, Including Evidence Cleaner, Junk File Cleaner, Duplicate Cleaner, System Optimization, IE Toolkits, System Toolkits...