Registry is the control unit of windows in the sense that it contain windows keys and data of events and program as well as their authentication are made possible and accessible by it. Windows registry is what the windows operating uses to track what software is installed and removed from the computer system. Hence the smooth running of the PC depends greatly on the windows registry, windows registry maintenance should be taken seriously (since any negative on the affects the computer performance greatly).
Since window registry module of the operating system is not always used by the user, most users give little or no attention to the registry. Remember it is important part of the window control structure therefore its importance for good computer performance can not be overlooked.
While manual maintenance of windows registry (editing registry) is met for professionals, non-professionals can achieve windows registry maintenance using good program written to fix windows registry (free registry software) available on the internet.
I personal use PC Clean to clean up registry of my system because it has the capacity of maintaining the registry, block and remove adware/malware and delete temporary files. You what it is a free program. Click here to download and install. Ccleaner is another good registry maintenance program, have not used but it contain most feature PC Clean contains. For download click here . These software use reistry delete to maintain and fix windows registry.
Cleaning registry should be done regularly for editing registry, this reduce the size of the registry database and smooth running of the PC. Windows registry maintenance if properly done can improve improve the computer speed (computer performance) significantly.