Sometimes, you will find that some applications fail to remove their own registry entries. Unfortunately, it does not always work that way. These entries will automatically be deleted when you uninstall the application. When you install an application, a new registry entries will be created.

Most applications today use registry to store configuration and other important data. It contains information that controls how your Windows appears and how it behaves. To Use the schedule feature in commercial reg cleaner to automatic scan and repair your registry.(C) Copyright 2008 Kok Choon - Feel free to reprint this article in its entirety as long as all links and author resources box in place.The Registry is a heart and soul of any Windows system. Some commercial cleaners even provide advance tuning tools to speed up your Windows.I would recommend you use few free registry cleaners for best result, if you want more effective cleaning, use one or two commercial registry cleaner will do. You also need to manually backup your registry before using them.On the other hand, commercial reg cleaner provides better error detection rate, safer to use, and you can be expert better support. Both serve their purpose and can't replace each other! You may download and install as many reg cleaners you like, freeware reg cleaner are very convenient to install (because they are free!) but hard to use because required some human intervention. Why do you need to clean registry? Microsoft first introduced Windows registry as the replacement of ini file (A type of software configuration file), provides better management for software programmer but in trade of performance when the registry database grown too large!Currently there are 2 types of reg cleaners, freeware and commercial. Microsoft first introduced Reg Cleaner during Windows 98, and since then many professional reg cleaners were created to provide faster detection and better cleaning.

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