Registry is the centre database of your computer operating system which contains information and settings for hardware, operating system software, most non-operating system software, and per-user settings. You must load the registry whenever you launch any programs on your computer. If the registry is too fat or with some errors, computer’s performance will seriously be impacted.
To optimize your registry, there are 2 ways.
The first way is to clean your registry manually. But it is with high risk to do this if you are not a registry expert. The wrong deleting or modification in registry will lead a computer crack. Click the "Start" menu button to open the Start menu. Click "Run" Type "regedit" into the text field and press "Enter". Access the many different entries in your Windows XP registry. It is separated into primary sections: HKEY_CLASSES_ROOT, HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, HKEY_USERS and HKEY_CURRENT CONFIG. Click the plus to find and delete entries in the registry that you know are either causing conflicts or no longer necessary.
The other way is to download a Link Removed due to 404 Errorand scan your registry for free. If you are not familiar with registry, it is highly recommended to use Registry Optimizer.