One of the primary functions of a Registry cleaner is obviously to clean out the Registry. But what exactly does this mean?
Well the Registry is the control center of the Windows operating system. It holds keys and data that provide instructions for your operating system. It is very easy for the Registry to become overloaded with invalid keys, corrupt data and more. Everytime you install software, new keys are added to the Registry, if you get infected with Adware or Spyware, this also adds bloat to the Registry.
You can manually edit the Windows Registry, but this is usually a very bad idea and not recommended at all. Anyway, for information purposes only, we will show you how you can access the Registry.
To open the Windows Registry, just type “regedit” into the Windows quick search box, or for XP, click Start->Run, then type in “regedit” and click OK.
Now you can see all the different settings and keys that exist. It can be very confusing. From this window you can also export the Registry or import a previously saved Registry. If you browse around you will start to notice different keys and settings for all parts of the system. Do not edit anything unless you really know what you are doing. One incorrect edit can affect your entire system and leave it inoperable.
So that is the Registry and Registry cleaners are developed to process the entire Registry and clean out all the junk. As you can see, it can be a very difficult task if performed manually.