One of the most vital methods to fix computer errors and optimize your computer to improve performance is to clean the hoof of your registry. There are so many people who use computers nowadays and who have never heard of the registry let alone how to fix it and optimize it.
If you do not know how important it is, I will explain it in English terms. Think of the registry as a file cabinet that holds data at all. When you install programs, data entries are used for settings and other recent data such as recent files that you have open in the program.
This is just a small example, however, because there is more data created in only those for certain programs. Now, once you uninstall the programs, many of them tend to leave the data entries in the registry that causes errors and clogs them.
Once it is cluttered with old entries and errors, your operating system will have system errors. This can cause slowdowns, your computer freezes, or even restart at random with a blue screen.
Now, as for looking for a registry cleaner. It can become a task because there are so many that appear on the Internet every day. Many of them that I personally tried just did not do the job properly or in some cases were trying to delete data entries that were made by my operating system.