http://www.cleanreg11.com/ What is the registry, and why clean reg? en-us http://www.cleanreg11.com/box114.gif http://www.cleanreg11.com/ 114 144 http://www.cleanreg11.com/index.html The Windows registry is a database that holds lots of information about a computer's configuration. Installing and uninstalling software makes a mess of your registry, and leads to decreased PC performance. Sometimes it even causes computer crashes.