As most of computer uses don’t know a file that we delete doesn’t get deleted at that very instant even when you use shift + delete buttons. Only the address of that particular file will be deleted from the address table so that we may not access that from the operating system. But that data can be recovered by using data recovery system and this concept is the basis for those systems and similarly when we uninstall software it doesn’t mean that all the software files are lost. Some of the files are stored into the registry these are link file which would be useful when you install that same software at some point of time in the near future. 

But the main disadvantage of this is that these link files occupy unwanted space in the registry which may cause problems in the future. So, we need to delete these files but manual deletion of these files is a bit tricky and time consuming. For this we need a registry cleaning software which can efficiently remove all the useless data from the registry. But this software also checks for errors and fixes them. Windows registry software is also available which can back all the data constantly just as a precautionary step. Registry cleaning assures top performance for your computer system and stability.

These all soft wares are also available as a single package as windows utility suite which also has many other tools for customizing and for optimizing your computer.