It seems like every other time I load a program, it wants me to download some new update or patch. All of this constant modification to programs and the underlying system can lead to serious registry issues you might not even be aware of until you start experiencing performance problems. Registry repair can be confusing and problematic - it can actually cause more problems than it fixes if you do it wrong - so it is usually best to use a trusted program that knows its way around. Be sure to backup your registry before you begin, too!