Ringing Ceders

I have been having a lot of problems lately with my PC.  I am getting a lot of registry errors and it freezes up way too much.  I spend a lot of time having to reboot in order to get Internet Explorer to open up.  It has become almost unusable.  I have been researching online looking for solutions.  It seems that I need to clean up my registry.  The thought of that just scares me.  There are many people that have done this successfully themselves. I have spent a good bit of time reading posts in various forums.  I need to figure out what is the best registry cleaner and the easiest to use.