You should have never done that outside Lightroom.
Is Lightrom showing question mark on the folders ?
NO! I know it should but it's not. That's why I included the info about me building Smart Previews on my imports now. Okay, I just looked at my Library Module and under my D:\ drive ALL it is showing right now is two things: my 2015_12_29 folder with a dotted-in carrot and no actual photos that are there AND my LR Catalog with the 469 photos I have in it AND I can still access those photos. I know I should only move in LR I just thought when I bumped up against the problem I could fix it by just Updating Folder location. Here's the thing, I can't see ANY thing else in Library Module under my D:\ drive now. Even my other pictures are showing up. which isn't that big a deal but I don't know what I've done.
Please show us a screen capture of the problem.
You know what dj, I just uninstalled and reinstalled LR. I only had 469 photos in there...my old SurfacePro3 crapped out recently so I got a new one and had to reinstall LR a few weeks ago anyway AND I just got this Canon T6s at the same time SO I didn't have anything I couldn't live without. I KNOW to move from LR, I just didn't see how and moved from the computer and thought I could fix by relocating folder in LR. I'm really trying to learn LR. I've bought classes on workflow, develop module and library module. I just want to get it right. You know, I THINK I know it and then I run up against something that totally confuses me. Thanks for the reply, sorry to bother you.
To reconnect files that have been moved outside of Lightroom, please use the link I gave earlier. Better yet, put the files on the external drive before importing them into Lightroom, or put them on the external drive during the import to Lightroom.
Even though you didn't have too much to lose, you still went about this the hard way. So for anyone reading this, to completely start over in Lightroom, you don't need to uninstall/re-install, just use File->New Catalog.
Also, may I recommend the following tutorials: