Before you begin messing around with your slow computer, it is highly important that you backup windows registry. This is crucial because there are some files in your registry that need to be there so that your computer will continue running.

To put it simply, a windows registry is basically just a huge database of records. This database stores every single hardware & software configuration, settings on your computer. It is organized in a hierarchical model and can contain hundreds of thousands of entries.

To be able to backup windows registry, a lot of steps need to be performed. However, using reliable registry cleaners can make it an easy job for you.