Comodo Registry Cleaner improves the health of your computer and makes it run faster by conducting a deep scan of the Windows registry to identify, remove, repair and optimize unnecessary or corrupt registry entries.Whenever you perform a task such as installing or removing a program or modifying a file on your computer, Windows creates an entry in the Windows Registry to reflect this change. Even those entries relating to programs you uninstalled years ago will remain until they are removed.Over time, these entries become disorganized and cluttered which slows down your computer. This is because, as the size of the registry grows, it takes longer and longer for Windows to sift through it to locate and update the entries for any new tasks you are carrying out. In short, your system becomes sluggish and slow.