Hello All. I am New to Lightroom and accidentally imported every image on my hard drive. This includes photo's and CGI images that I created in my rendering programs. Now everything is a mess and unorganized. also, some new images do not show up in the library. Can I reset and start from scratch? Thanks in advance for any help in this area. Mean while, I shall continue to look through the help menus.
Here are 2 ways to "start over":
1. remove all photos (or all extraneous photos anyway) from existing catalog (e.g. all photos collection, ctrl/cmd-a, then delete key).
2. create a new catalog (see file menu).
It sounds like #2 would be best for you, so you don't have extraneous keywords in your catalog etc.