If you are very new to the term of Registry for your operating system or you are wondering whether you need to clean your registry then the answer is surely, "yes".
If you clean registry for your Windows operating system then the performance will improve.
All your customized or system preferences such as file association, system policies, software installation settings, appearance of your desktop etc.
are stored in the database of registry through which Windows can keep track of all the changes.
Due to the fact that registry settings are stored in small files with different values and are not so easy to maintain manually, over the time your system may get slow due to some junk data or entries in the registry database.
So it is very important to clean the registry for good performance of your operating system.
REGEDIT command when executed from the run option in windows will let you view your system registry.
You will be able to view many entries related to the software installed in your operating system or system related preferences.
You can make use of a good registry cleaner software that can automatically clean the registry of Windows and tune as well as customize your preferences for better performance.
Software such as RegSeeker, CCleaner, Uniblue RegistryBooster etc.
gives you a good choice for cleaning the registry.
You can also get some free downloads for your home use.
Registry is the heart of your system settings and so if anything goes wrong there then you may face many problems even at the startup of your computer.
As a part of precaution create a System Restore point for your operating system.
You can also make a full registry backup with the help of system utilities so that in case of failure or problems you can restore your old settings.
Following the above step will help your system to run faster and will also make sure that junk data is removed from your operating system.