Well, first off, don't go spelunking around in the registry. You're going to break something, and then you'll be upset about that.
Second, generally speaking, it helps if you use a few nouns. Typed URLs from what, for instance? Obviously we can deduce a web browser, but which one? Internet Explorer, Firefox, Opera, Safari, Chrome?
I have window Vista. I am trying to delete my typed URLs. I have been following the click on HKEY-CURRENT- USER and going all the way down to Typed URLs but I can't get the URLs to appear. What do I do. It seems that Vista is different.