I would welcome suggestions for a reliable & simple to use Registry Editing tool. I have tried RegCleaner (free) by Juoni Viourno, but am having problems as it seems not to launch - see thread on uninstalling Realplayer in this forum.

I did find a beginners guide tp the Windows Registry at

http://www.bleepingcomputer.com/tutorials/tutorial74.html

Some here:
http://www.techspot.com/downloadid14by4.html
Here's a free one:
http://www.techspot.com/downloads/3234-fix-my-registry.html

I do not advise a Registry cleaner for novice users. The user has decisions to make.