From RegSofts+Software:

Free Window Registry Repair is a heart and soul of any Windows system. It contains information that controls how your system appears and how it behaves. Almost all Windows users gradually experience the downfall in their PC’s performance. Much of it can be attributed to Windows Registry Errors. By using Free Window Registry Repair regularly and repairing your registry your system should not only be more stable but it will also help Windows run faster. Within few minutes and fewer mouse clicks, you can easily attain maximum optimization of your windows registry with Free Window Registry Repair. It will scan your complete registry and fix the registry problems. For your convenience and for insuring maximum protection Free Window Registry Repair automatically backup any repairs made. So you always can restore Windows registry to the original state using restore button.