Registry cleaners are software tools designed to scan through a part of your computer called the "registry" and fix any of the damaged or corrupt settings that are inside it. Many people recommend these tools to fix slow Windows systems, but in order to get the most out of them, you need to know exactly how to use them in order to give the most benefits to your PC.
The registry is a very important component of your operating system in that it acts as a central database which stores all of your operating systems hardware and software related configurations. What people don't realise is that the information in this database is constantly changing due to the fact that most pc users frequently add or remove hardware and software components from their pc's. Over a period of time this will end up having a negative effect on the registry as it will build up a large amount of redundant and obsolete entries which will consequently affect Windows' ability to process information from it ultimately resulting in poor program and task functionality.
The registry is the main cause of XP's slow speed, and the good news is that you can actually speed it up very easily by using a "registry cleaner" tool. These are popular software programs which are able to read through the registry of your PC and fix the errors which are causing it to run slow.You can use a registry repair toolby downloading one from the Internet, letting it scan your system and then fixing the various errors that it finds - which will not only make your PC faster, but also much more stable.