The program scans the Windows registry and finds incorrect or obsolete information in the registry. After it analyzes your system for problems, you can individually view each of the problems found and call up a detailed description.
This page explains what the Windows Registry is, why CCleaner cleans it, and how to clean it. To skip to instructions for Registry > Registry Cleaner, go to Clean your Registry with CCleaner for Windows further down this page.
Use Wise Registry Cleaner to clean invalid registry entries, fix Windows registry errors, defragment Windows registry, and keep your PC performing at its best.